I thought there was a discussion about this in the gaming forum, but I couldn't find it so... I'm getting a single or dual Giga Designs G4 upgrade, and figure a graphics card upgrade may be in order. Barefeats seems to indicate that the GeForce4ti and Radeon 9000 are pretty close in performance, though the benchmarks don't include the latest games like Halo/CoD. The GeForce is nearly impossible to find and still seems to be in the $300-$350 range. The 9000 is reasonaby priced and available. And then of course there is the 9800... My main question to those upgraded or MDD G4 users out there is will the new CPU push a Radeon 9800 Pro ME meaningfully more, or will the 9000 or GeForce4ti be all that it can ever use? I'm inclined to buy the 9800 Pro ME from sheer vanity.