Microsoft has released a ton of Xbox 360 trailers. The high definition videos show demos for 16 next-gen games and includes the EA compilation demo. Here's the full list:

Call of Duty 2
Condemned
Dead Rising
Demonik
EA Compilation E3
Final Fantasy XI
Frame City Killer
Full Auto
Ghost Recon 3
Kameo
Madden NFL 2006
NBA 2K6
NHL 2K6
Quake 4
Saint's Row
Test Drive Unlimited
The Darkness

Xbox High Definition Videos [Microsoft]