Hi i want to upgrade the menory on my Pc and was wondering if anybody knew any good websites to buy cheap pc memory from.

Hiya Happy_Guy :)
Buying cheap memory isn't really advisable. There are lots of cases of cheap memory causing all sorts of conflicts and troubles.
The last time i bought some i got it from Crucial (http://www.crucial.com/uk/). I ordered it on Sat night and received it on the Monday :shocked:
The site also has a PC inspector to make sure your getting the right memory :)

PS. Buying direct from Crucial was far cheaper than anywhere else i looked in Sheffield. It was half the price that PC World wanted for the same item :wink: