Xbox titles with Pal60 support

4x4 EVO 2: No

AFL Live 2003: No

AFL Live 2004: No
America's Army: Yes
Amped: No
Aggressive Inline: No
Alien Hominid: Yes
Animaniacs: The Great Edgar Hunt: Yes
Armed and Dangerous: No
Azurik: Yes
Baldur's Gate Dark Alliance: No

Barbarian: No
Batman Begins: Yes
Batman: Rise of Sin Tsu: No

Battle Engine Aquila: Yes
Beat Down: Fists of Vengeance: No (curiously, the ps2 version has NTSC60 support)
Bicycle Casino: Yes
Big Mutha Truckers 2: Yes

Blood Omen 2: Yes
Blood Wake: No
Blowout: No
Broken Sword: The Sleeping Dragon: No (but US version doesn't have 480p so this is the best looking version)
Buffy The Vampire Slayer: No
Buffy Chaos Bleeds: Yes
Burnout 2: Yes
Burnout 3: Yes
Burnout Revenge: Yes
Cabela's Outdoor Adventures: Yes (!!!)
Call of Duty 2 Big Red One: No
Call of Duty Finest Hour: Yes
Carve: Yes
Capcom vs SNK 2 EO: Yes
Castlevania: Curse of Darkness: Yes
Circus Maximus: No
Conker: Yes (boots in 50hz mode, 60hz post logos)

Crash Nitro Kart: No (several sources report this as Yes, a complete lie)
Crash Twinsanity: Yes (ps2 version doesn't have 60hz despite what several sources say)
Crash Wrath of Cortex: No
Crimson Skies: Yes
Crouching Tiger Hidden Dragon: Yes (boots in 50hz mode, 60hz post logos)
Dancing Stage Unleashed: No
Dancing Stage Unleashed 2: No
Dancing Stage Unleashed 3: No
Darkwatch: No
Dave Mirra Freestyle BMX 2: No
David Beckham Soccer: Yes
Dead or Alive 3: Yes
Dead or Alive Ultimate: Yes
Dead or Alive Xtreme: Yes
Disney's Extreme Skate Adventure: Yes
Dino Crisis 3: Yes
Doom 3: No
ESPN Winter X Games Snowboarding 2: No
Evil Dead: A Fistful of Boomstick: Yes
Evil Dead: Regeneration: No
Fatal Frame: Yes
F1 Career Challenge: No
Final Fight Streetwise: No (ps2 once again had 60Hz)
From Russia with Love: No
Full Spectrum Warrior: Yes
Full Spectrum Warrior Ten Hammers: Yes
Furious Karting: No
Fuzion Frenzy: No
Galleon: Yes

Gauntlet Seven Sorrows: No
Ghost Recon 2: No
Ghost Recon 2 Summit Strike: No
Gladiator: Sword of Vengeance: No

Godzilla Destroy All Monsters Melee: Yes
Goldeneye: Rogue Agent: Yes
Grabbed by the Ghoulies: Yes

Gravity Games: No
Greg Hastings Tournament Paintball Max'd: No
Great Escape, The: No
Group S Challenge: No
GTA Vice City: Yes
GunValkyrie: Yes

Half-Life 2: No
Halo: No
Halo 2: Yes
Harry Potter and the Chamber of Secrets: Yes
Harry Potter and the Prisoner of Azkaban: No
Harry Potter Quidditch World Cup: Yes
Headhunter Redemption: Yes
Hobbit, The: Yes
House of the Dead 3: Yes
Hunter The Reckoning: No
Hunter The Reckoning Redeemer: No
Hulk Ultimate Destruction: Yes

International Superstar Soccer 2: No

Jade Empire: Yes
James Bond 007 Everything or Nothing: No
James Bond 007 Agent Under Fire: No

James Bond 007 Nightfire: No
Jet Set Radio Future + Sega GT 2002: Yes (boot menu in 50hz mode)
Kelly Slater Pro Surfer: No
Kingdom Under Fire: Heroes: No
Largo Winch: Empire Under Threat: Yes
Legacy of Kain Defiance: Yes

Loons The Fight for Fame: No

Lord of the Rings: The Fellowship of the Ring: No
The Legend of Spyro: A New Beginning: Yes
Mace Griffin Bounty Hunter: No

Marvel vs Capcom 2: Yes
Mat Hoffman 2: No
MechAssualt: Yes
MechAssault2: Yes
Medal of Honor: Frontline: Yes
Medal of Honor: Rising Sun: No
Mercenaries: No
Metal Arms: Yes

Micro Machines: No
Midnight Club 2: Yes
Midnight Club 3: Dub Edition (+Remix): Yes
Midtown Madness 3: Yes
Mission Impossible OS: No (another one with 60hz on ps2, what's up with this?)
Mortal Kombat: Deadly Alliance: Yes
Mortal Kombat: Deception: Yes
Mortal Kombat: Shaolin Monks: Yes
Nightcaster: No
Off-Road Wide Open: No
Panzer Dragoon Orta: Yes ( I think panzer dragoon 1 runs at 50hz?)
Phantom Crash: No
Powerdrome: Yes
Prince of Persia: The Sands of Time: Yes
Prince of Persia: Warrior Within: Yes
Prince of Persia: The Two Thrones: Yes
Project Gotham Racing: Yes
Project Gotham Racing 2: Yes
Prostroke Golf: Yes
Psi-Ops: Yes

Psychonauts: No
Puyo Pop Fever: No

Quantum Redshift: No
R:Racing (Evolution): No
Rallisport Challenge: Yes
Rallisport Challenge 2: Yes
Red Dead Revolver: Yes
Rocky: Yes
Rocky Legends: Yes
Rogue Ops: Yes

Rolling: No
Scaler: No
S.C.A.R: No
Scooby Doo Mystery Mayhem: No
Serious Sam: No
Serious Sam II: No
Shadow the Hedgehog:Yes
Shenmue II: Yes(Arcade games in 50hz?)
Shrek 2: Yes
Sid Meier's Pirates!: No
Slam Tennis: No
Sonic Heroes: Yes
Sonic Mega Collection Plus: No ( Games run slower, unlike most PAL50 games on Xbox)
Sonic Riders: Yes
Soulcalibur 2: Yes

Spartan Total Warrior: Yes
Spawn Armageddon: Yes
Sphinx and the Cursed Mummy: Yes
Spider-Man: Yes
Spider-Man 2: No

Splashdown: No
SpongeBob Bikini Bottom: No
Spyro: A Hero's Tail: Yes
Spy vs Spy: Yes
SSX3: No
SSX On Tour: No
SSX Tricky: No
Star Wars Episode 3: Yes
Star Wars: KOTOR: Yes
Star Wars The Clone Wars: No
Stolen: Yes (no 480p support in the NTSC version either)
Super Monkey Ball Deluxe: Yes
Tenchu: RFD: No

Tim Burton's The Nightmare Before Christmas: Oogie's Revenge: Yes
Timesplitters 2: No
Timesplitters: Future Perfect: Yes
Toejam and Earl 3: Yes
Tom Clancy Rainbow Six 3: No
Tom Clancy Splinter Cell: No
Tom Clancy Splinter Cell Chaos Theory: Yes
Tom Clancy Splinter Cell Double Agent: Yes

Tom Clancy Splinter Cell Pandora Tomorrow: Yes
Tony Hawk's Pro Skater 3: Yes
Tony Hawk's Pro Skater 4: Yes
Tony Hawk's Underground: Yes
Ultimate Pro Pinball: Yes
Ultimate Spider-Man: No

Urban Chaos: Riot Response: Yes
Van Helsing: No (heard this one has NTSC60 support on the Ps2 version as well?)
Vexx: No
Voodoo Vince: Yes
Without Warning: Yes
World Championship Rugby: Yes (!)
Worms 3D: No
Wreckless: No

This was all extensively researched. I own 98% of the games on this list. First party titles and Sega titles are almost always 60hz.

Unconfirmed, if anyone knows, please tell me:
Advent Rising
Batman Dark Tomorrow
Batman Vengeance
Big Mutha Truckers 1

Black Stone: Magic & Steel
Bloody Roar Extreme
Breakdown
Burnout 1
Capcom Classics Collection
Counter Terrorist Special Forces: Fire for Effect
Deadly Skies
Elder Scrolls 3 Morrowind, The
Fable: The Lost Chapters
Fatal Frame 2

Gauntlet Dark Legacy
Gene Troopers
Genma Onimusha
Godzilla Save the Earth
Greg Hastings Tournament Paintball
GTA III
GTA: San Andreas
Gungriffon: Allied Strike

Lord of the Rings: The Two Towers

Lord of the Rings: Return of the King
Mark Ecko's Getting Up
Manhunt

Metal Dungeon

New Legends

Nickolodeon Party Blast

NightCaster 2
Panzer Dragoon 1 (included in Panzer Dragoon Orta)

Phantasy Star Online 1 & 2
Shadow of Memories
Shenmue II's arcade games
Silent Hill 2
Silent Hill 4
Spikeout Battle Street
Spongebob Squarepants Movie, The
Spongebob Squarepants: Lights Camera Pants
Star Wars KOTOR II
Worms 4: Mayhem
and many others. Any additions would be helpful!

Any corrections can be listed in the comments below.