My friend recently obtained a stock Dell Inspiron 546 off someone. She's primarily using it to play World of Warcraft but is only getting 10 FPS at best. I'd like to help her choose a graphics card that would at least get that up to a playable 30 FPS without needing to swap out other parts in the computer as well. Currently she's just using the integrated AMD RS780 chip. Can anyone offer a suggestion on a good pick? Thanks for your time.