4GB Kit (2GBX2) DDR2 800MHz RAM Memory Upgrade for Apple iMac Core 2 Duo 20-inch (Early 2008) (PARTS-QUICK) - Walmart.com
Apple iMac 20-inch November 2007 2GHz Intel Core 2 Duo (MA876LL) – UNICOM, Inc.
Apple iMac 20″ Core 2 Duo E8135 2.4GHz 2GB 250GB A1224 MB323LL/A Refurbished – Computechsale
OWC 2.0GB (2048MB) PC4200 DDR2 533MHz 240-Pin DIMM... at MacSales.com
OWC 4GB (2 x 2GB) PC5300 DDR2 667MHz SO-DIMMs Memory RAM Upgrade Compatible with MacBook, MacBook Pro, iMac, Mac Mini Core 2 Duo Models (OWC5300DDR2S4GP) at Amazon.com
iMac Memory for Model 8.1 | DDR2-800MHz |4GB | MacMemory.com
Apple iMac 2008 20" 6GB DDR2 - NO HDD - computers - by owner - electronics sale - craigslist
Apple iMac (24-inch, Late 2006) Memory RAM | 2GB Kit (2x1GB) DDR2 667M — A-Tech Memory
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