You'll need to choose a low-profile video card for that slimline case.
The best low-profile card I could see is a Galaxy GeForce 9600 GT 512MB that looks like it will run with that power supply. Check the NewEgg customer reviews.
i'm running on med pc (pentium d 2.8 ghz, 2GB DDR2 ram, onboard vga) and i want upgrade my vga with 4670 becuse i'm only had little budget.. my pc also had 250W PSU.. any idea? sorry for my english.. thx
They do not make a 4670 low pro card, plus i think it will need a little more juice than a 250w. The 9600GT might draw to much power. I'd suggest a 9500GT slim card for a 250W PSU.