Fry's has a pretty good deal on dual core ram IMO. Kingston 2G (2x 1G) for 149 - 20MIR. The add just came out today. Here's a link to the San Jose adds, as posted by Harvey.
http://newspaperads.mercurynews.com/ROP/ads.aspx?adid=2613362&advid=32664&type=
http://newspaperads.mercurynews.com/ROP/ads.aspx?adid=2613362&advid=32664&type=