Definitely Resident Evil. As for the others?
Mario Sunshine
Starfox Adventures
Metroid Prime (First person Shooter style)
Legend of Zelda (2 games coming I think...)
Phantasy Star Online (4 player split screen )
Robotech (They keep promising, but I never see any...)
Soul Calibur 2 (PS2 also, and I think Xbox as well...)
Turok Evolution.
Theres others coming also, but mostly ports from the PS2. These (except SC2, and Turok) are GC specific.