Ok so I currently have a 550W PSU, Asus a8n32-sli deluxe mobo, one gig of some fast ram can't remember the name, however I plan on upgrading that soon, amd athlon x2 4200+ processor, and two 7900GT's. I started getting graphical errors, did some tests and found out one of my 7900GT's was shot. I am down to one 7900GT which is just not enough power for what I am doing. I have had this computer for a long time so I am thinking about just getting rid of the other 7900 and getting a beefier graphics card. I am really liking the price and performance of the 9800 GX2, however is my system too shitty for such a powerful card? Would it be pointless to get a card that good, or should I just upgrade the whole system. I don't really want to do that, money is tight, but it could be done. I just don't want to replace my GPU with some expensive card if the rest of my system is just going to bottleneck it.