It's not the power supply I don't like, so much as an HD 4670 for your graphics card.
Don't get a 4670 for a new machine. It is not a very good gaming card -- only useful if you have a really small (300W) power supply or an old machine limited to AGP cards.
If this is a machine you want to keep for a while, you should get an HD 4870 (if you want to keep it 1-2 years) or an HD 5770 (if you want to keep it longer). That power supply should be adequate for either of those cards.