hi, i have a dell dimension e510 and i am looking to upgrade my graphic card.my power supply has 305watts am not planning on upgrading my power supply i just looking for a graphic card that i can play games on like world of warcraft. can you tell we what graphic card will support my power supply i recently brought EVGA e-GeForce 8400 GS 512MB DDR2 PCI-Express 2.0 Graphics Card will this card work with my system if no can you recommand me some that wll work with 305watts