Likes, fast 7455 G4s with 2MB L3 cache
Hates, any 7447 G4 (made for iBooks) at any speed
Likes, video cards that support Quartz Extreme (Radeon 7000 and up)
Hates, video cards that don't support Quartz Extreme
(MSI 1.0 will launch with older cards but 1.1.1 didn't launch for me at all until I slapped a Radeon 7000 in. AGP 2x or 4x works OK.)