The wattage would
be ok, but that's a piss poor quality unit. Only 34A (408W) max on the 12V rail. For a supposedly
600W unit, that's terrible.
Some good advice that you should absolutely follow: DON'T cheap out on the PSU! It's THE most important part of your system and quality definitely matters. Yes, quality costs more, but it's absolutely worth it. You don't want a bad PSU failing catastrophically and taking all of your other components with it.
Now, any 500-550W unit from SeaSonic, Corsair, Silverstone, Antec, PC Power & Cooling, and XFX (also a few from OCZ) would be just fine and is what I would recommend.
Like this (SCAN link): 520W Antec High Current Gamer HCG-520, 88% Eff', 80 PLUS Bronze, EPS 12V, Quiet Fan, ATX v2.3, PSU
£55.82 Inc. VAT
A good bit more expensive, but just trust me that it's worth it.