4gb of memory will be about 100$
eh.. i haven't been able to find 4gb RAM from a name brand from UK sites like aria, overclockers, ebuyer etc. Prices are a tad higher here.
http://www.aria.co.uk/Products/Comp...4GB+PC2-6400+C5+XMS2+(2x2GB)+?productId=27910
found this for £92 pound( roughly $184), cant find cheaper unless i go 4x1GB, but again still £82
Corsair 2GB PC2-6400 XMS2 (2x1GB) - Aria Technology