You're lucky you got Rez already. That's one of my personal favorites.
MSR
Jet Grind Radio
Virtua Tennis 2
Hydro Thunder
Resident Evil Code: Veronica
Soul Calibur
Sonic Adventure 2
Loony Tunes Space Race
Virtua Fighter 3TB
Sword of the Berzerk: Gut's Rage
Wacky Races
Virtual On: OT
Cannon Spike
Toy Commander
MDK 2
Rush 2049
Shenmue 1 & 2
Project Justice
Sega GT
Ecco the Dolphine
Sega Rally
Stupid Invaders
Daytona USA
Phantasy Star Online
Test Drive: Le Mans
Mars Matrix
Gunbird 2
GigaWing
Last Resort
GunLord
Dux
Releasing Soon:
Redux
Sturmwind
Pier Solar