New PCIE card for my PC?

The just real games that I play on my computer are WoW and Roller Coaster Tycoon 3... Sad, yes, but I obligation some help. I call for a decent PCIE card to run on this computer. NOT ATI because they seem to be to interfere with WoW. My blind is a 37inch LCD HDTV that goes to 720i. What is a fully clad card between 100-200 bucks that i could get to craft everything run good? Its a newer computer. 1gig of bump... Just trying to get it running smoother.

New PCIE card for my PC?

nvidia 7600

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