OCZ OCZ2G10664GK 4gb kit (2gb x 2) pc2-8500 1066mhz 5-6-6-18 240-pin ddr2 dimm w/reaper hpc heatsink
KINGSTON value ram KVR1333D3N9K2/4G 4gb kit (2gb x 2) match pair 1333mhz cl9 240-pin ddr3 dimm
OCZ OCZ3G13332GK 2gb kit (1gb x 2) 1333mhz 9-9-9-26 240-pin ddr3 dimm w/heat spreader ($30 Mail-In Manufacturer Rebate Available from 12/1/08 till 12/16/08)
Generic 1gb pc2-5300 667mhz ecc fully buffer 240-pin ddr2 fbdimm