Okie dokie, I may just get the 750w then, as it's only a few quid more.
*EDIT*
Would i beable to change the mobo for a different one? Same price, maybe a little more expensive, but not too much. So it has dvi/vga connectors on the mobo, as i am around £60 short for my GPU atm. but can order everything tomorrow. Also taken the SSD out, i have a 1TB hd here, so instead of paying out for this SSD, i'll just buy the next best one in a few weeks.