Hey there, Here is what I have in my computer as of now: Intel PentiumD920 2.8Ghz Overclocked 3.36Ghz Asus P5WD2 Motherboard CPU-Z Reads me as having 2048Mbs of DDR2 Memory, but there is over 3Gbs in there, going to have to check that out I guess. XFX GeForce 7600GT video card Rosewill RP500-2 Power Supply. There are two +12V, 1 and 2. 1 is 18A, 2 is 16A. So my question is this. With my video card should I purchase another one and SLI them, or would it be cheaper or better to just purchase a better single card. Also, if I do go for SLI'ing them, what are the requirements for buying another card? Does it need to be the exact XFX card, or just any 7600GT? Thanks.