In short, I have a crappy PSU with 13A on the 12+ line. To run a 6800GT with my Mobile 2400+(2.4GHz) at 1.9v and RAM at 2.9v, I most likely would have to bump down the overclocks and voltages to avoid a PSU malfunction. I'm asking if the 6800GT's raw power would make up for the speed I would lose by putting my clock speeds slower? Or should I get a quality 530w Fortron, and then get the 6800GT later? I'm saving up for the 6800GT, and it's taking forever with no job, but if it is a better idea to get the PSU first, then that's what I'll do.