[OT] G3 B&W memory

'allo,

     I know this is off topic, but I figure since everyone is so friendly
on here I might as well ask here.

     I have a G3 Blue & White, and it seems that the memory in it is
bad.  Running memory tests on it shows a lot of problems, which would
explain the problems I am having with it with regards to the random
crashes, etc.  Does anyone know where to get some decently priced memory 
for it, where I can be reasonably assured of the quality of the memory ?
No, Ebay is not the answer, as the memory in it is from Ebay. :)


cheers,

     mehul