The 9800 is a great budget card, but don't expect to run Doom 3 at huge framerates with it. If you want some show quality stuff, go higher end, like GeForce 6800 Ultra or RADEON X800 XT Platinum. As for the case, have you made a decision on that? Check out http://www.xgbox.com They have some pretty sweet looking boxes there, especially the Dragon, that thing is

1998 Contour GL 2.0L Zetec Stock as hell for the moment....