Cheers for that.
Its a Coloursit EN60950
Says: 400w?
Or do you need the +3.3v/20a etc etc?
From my experience a 400W PSU should do the job, but if your planning on upgrading parts in the future (especialy the GPU as you stated) a more powerful and reliable PSU maybe needed, I would suggest:
ThermalTake TR2 Value 500W (£40.25):
http://www.novatech.co.uk/novatech/specpage.html?TT-W0093
But it maybe worth waiting and see what other people suggest on the forum first.