I just bought a G4 450mhz single processor on ebay to use as a cheap second desktop computer, and want to upgrade the original Rage 128 card with a Quartz Extreme compatible card. But I'm not sure what the best card under $100 would be. I'm thinking an original Radeon or Radeon 8500, maybe a GeForce 2mx. But I've also seen several flashed PC cards on the bay. How well do these work, for example say a Radeon 9250? Are there any glitches or issues that must be dealt with?