Need some advice.

[Salroth]

Recently I've been looking at a lot of pre-built computers for a budget gaming rig. Yesterday I came across the iBUYPOWER Gamer Power 918i for $580 US on Newegg.
I'm thinking about ordering it but would like some second opinions before purchasing. This comp will basically just be running WoW and FireFox at any one time, nothing more.
Also, please don't say "Just build one" I know it is cheaper and it is easy, but my current living arrangements make it impossible. Also, if I bought this I would have around $100 left if there is something on it that needs a little upgrade. Thanks for taking a look.

[aggs]

For what you need it for nothing sticks out to me, should be more than adequate.