That card is in the same ballpark as a 9800GTX, plus support for some DX11 features.

Now, I ran 4x WoWs at 800x600 on a Q6600 and i7-950 with a 9800GT for the first couple years I boxed it, so that card will suffice if you use ultra-low settings. Note that you will NOT be able to run your main at full resolution on medium or high settings if you expect more than 15FPS. And good luck in Dalaran/Org/etc. It will probably be unplayable at any setting if you use ISBoxer to run all 4 at full rez and have it insta-swap things and do all the fancy stuff ISBoxer does so well. Just not happening on that card, IMO.

You _might_ get a little better performance with the i5 CPU but I wouldn't bet the farm on that.

Basically, buy cheap now and pay extra to upgrade once you realize it sucks balls anywhere but in 5-man instances, or pay a little extra now for a 2-3x more powerful graphics card and be happy (if not exactly ecstatic) for the next couple years.

Forgive me if this sounds brutal, but if $100-150 extra for a GT560 or HD6950 (which are about 2.5x as powerful overall) isn't in your budget, you might rethink priorities.