I have an asrock p4 v88 mother board with a pentium 4 2000mhz pt880 chipset and 1536 mb ram and a 300w PSU, i also have two 120 gig hard drive and 2 dvd burners as well as a sound card. Im considering buying an x1650xt or an x1650pro, but was wondering if my PSU could support it and if it can't what watt should i look for? Also Im worried that my specs might cause a bottleneck making those card ineffecient. Im not a hard gamer, i can survive playing in md settings and i usually play older games. Maybe black and white 2, fables, POP: two thrones, Battle for Middle Earth etc.. but i also want to play the newer games even at low settings. If not these cards what cards should i get?