Would this PCI graphics card be suitable for playing most games at lowest settings, GBA and N64 emulation, and give my system a performance boost?
(Note: As I have said before, System #1 only has PCI Slots, and that's the one I'm trying to upgrade...)


http://www.compusa.com/products/product_info.asp?product_code=333475&pfp=search&tabtype=ts#moreinfo

Yes, it would be suitable. Decent PCI cards are getting hard to come by, especially one's with 256MB of memory. Newegg doesn't carry them anymore. I did find one for less at TigerDirect if you want to order one.
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1520540&Tab=2&NoMapp=0

Okay, now here's another question: using eXtreme OuterVision's PSU calculator, I found out that, with my 250W PSU, at max capacity up to 237W of power would be used w/ the graphics card. My question is, if I overclock this card (which I intend to do), will I kill my PSU?