Since you seem to be geared towards gaming, forget the 64-bit $hit and stick with 32. The 9800GT card is a venerable performer. I have the a 9800GTX by XFX and what a sweet card it is. Finally, I can set all of my game's settings to maximum and get frame rates of 70+ to over 90 at times. My Audigy 2 card also provides EAX sound for very good dimensional sound. The downside is there's a new BIOS release for my Asus mobo that allows for improved RAM and GPU graphics. I hate to fiddle with installing the BIOS however I could then install that extra gig of Corsair ram I have on hand.