URAM Laptop Memory 2GB 667MHz PC2-5300 PC2-5400 DDR2 SDRAM SODIMM RAM Stick for Mac, Intel, & AMD Systems, blue at Amazon.com
4GB [2x2GB] DDR2-667 (PC2-5300) RAM Memory Upgrade Kit for The Apple iMac 7,1 (20-inch, 2.0GHz, MA876LL/A) Intel Core 2 Duo (Genuine A-Tech Brand) at Amazon.com