Amazon.com: OWC 16GB (2 x 8GB) PC6400 DDR2 ECC 800MHz FB-DIMMs Memory Compatible with Mac Pro Quad Core / 8 Core (OWC64FB8MPK16GB) : Everything Else
Transcend JM800QSU-2G 2GB DDR2 800 SO-DIMM at Amazon.com
High Performance Memory Module for RAM for Intel/AMD (2GB, DDR2,800MHz, 200PIN, PC-6400), Compatible with Your Digital Smart Computer/Computer at Amazon.com