Hi, I want to upgrade my graphics card and power supply. I have a Compaq Presario sr1650nx (http://reviews.cnet.com/desktops/hp.../4507-3118_7-31518022.html?tag=mncolBtm;rnav). I need help finding a graphics card that is pci-express 1.0 x16 and finding a power supply that fits in my tower and is compatible with my motherboard, Asus A8AE-LE (http://h10025.www1.hp.com/ewfrf/wc/...280/loc:1&lc=en&dlc=en&cc=us&product=1127352). I have looked at the 9400GT low profile but I am not sure if it will fit in the my tower. So if anyone has suggestions on what kind of graphics card and power supply would work it would be appreciated.