Kingston

KVR400X64C3A/512 512MB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM $29.65 (USD)	KVR667D2N5/1G 1GB 667MHz DDR2 Non-ECC CL5 DIMM $37.65 (USD)
KVR667D2N5/2G 2GB 667MHz DDR2 Non-ECC CL5 DIMM $72.30 (USD)	KVR667D2N5K2/2G 2GB 667MHz DDR2 Non-ECC CL5 DIMM (Kit of 2) $75.30 (USD)
KVR667D2N5K2/4G 4GB 667MHz DDR2 Non-ECC CL5 DIMM (Kit of 2) $144.61 (USD)	KVR800D2N5/1G 1GB 800MHz DDR2 Non-ECC CL5 DIMM $38.32 (USD)
KVR800D2N5K2/2G 2GB 800MHz DDR2 Non-ECC CL5 DIMM (Kit of 2) $76.64 (USD)	KVR800D2N5K2/4G 4GB 800MHz DDR2 Non-ECC CL5 DIMM (Kit of 2) $147.27 (USD)
KVR800D2N6/1G 1GB 800MHz DDR2 Non-ECC CL6 DIMM $37.65 (USD)	KVR800D2N6/2G 2GB 800MHz DDR2 Non-ECC CL6 DIMM $72.30 (USD)