Bit of a departure this, DDR2 memory will lose you a couple of percent performance (possibly) but otoh it is quite cheap and looks fantastic


Shuttle SN78SH7 ~ £153
http://www.ebuyer.com/product/148249

4GB DDR2~ £78
http://www.ebuyer.com/product/166785


Cut from other posts:

Samsung F3 500GB ~ £37
http://www.ebuyer.com/product/146252

SATA DVD rewriter ~ £15
http://www.ebuyer.com/product/170014

Phenom II x4 965 BE £139
http://www.ebuyer.com/product/186428


Total so far £422, plenty left for a single slot graphics card or Mars bars, or even a copy of Windows if that floats your boat