In my spare time I build computers for people, self building allows you to get the best performing parts with your budget.

This is the list of the components for the last computer I built and I would recommend them to anyone building a computer with a £700 budget.

£400 Destop mostly for office use and some gaming.
AMD Athlon II 250 X2
XFX Radeon HD5750
4GB Corsair DDR3 1333
Gigabyte MA770T-ES3
Samsung spinpoint F3 500GB