CORSAIR TW3X4G1333C9DHX 4gb kit (2gb x 2) 1333mhz matched pair 9-9-9-24 240-pin ddr3 dimm ($30 Mail-In Manufacturer Rebate Available from 12/16/08 till 1/15/09)
Generic 1gb (1024mb) pc3200 400mhz non-ecc 184-pin ddr dimm
KINGSTON hyper x KHX8500D2K4/4G 4gb kit (1gb x 4) match pair pc28500 1066mhz cl5 5-5-5-15 240-pin ddr2 dimm w/heat spreader
PATRIOT PSD31G10662 1gb pc3-8500 1066mhz cl7 240-pin ddr3 dimm