To not repeat everything Haven has just posted the 4350 is a horrid card not gaming suitable really. You should be able to play WoW fairly happily on a 8600. It's not a great card but should be up to that at least.
Vista home is one of those frustrating experiences that you really do want to avoid.
Following Haven's advice go for a OcUK bundle. If it were me however I'd go for
the always awesome Q6600
I still get impressed by mine 18months now since I got it. It is a stunning CPU and with some very simple tweaking can be made even more awesome. You don't need to OC this chip at all to get the most out of a 8600 but I let mine out a bit to get the most of my 3870X2 and it will run stable at 3.6GHz.
The Phenom II are however not a bad chip and for that money it is indeed a very solid bundle indeed. You will get a much better out of the box gaming performance from this new Phenom, good to see AMD competing again. But I do love my Q6600 and if you are wanting to save a bit to get a better gfx card as well, then I'd suggest a 4850 would be the lowest point you want to be looking from ATi and from the nvidia camp IMO there's not much that is all that appealing at that price point.