I need a power supply & graphics card. I own an SX2802 Gateway slim Desktop computer. I'm trying to replace the Intel GMA X4500 graphic card with a more improved graphic card so my gaming experience will be better. The power supply my computer has is only a 220 watt. I need to find a 400+ watt power supply that will fit in my psu so I can get a pretty good graphic card. A friend of mine bought a EVGA- GeForce GTX 550 Ti 2GB GDDR5 PCI Express 2.0 Graphics card and he said it's running World of Warcraft pretty well. It runs anywhere from $150-$180. My problem is, I don't know if that graphic card will fit in my slim desktop. Any input concerning my power supply & graphic card hunt would be great.