Hi,

Buying gaming machine. Don't know anything about OC'ing, nor whether I'll want to, but just don't want to have to throw memory away in the future.

System

CPU: Intel Core 2 Duo E6700 S775, 2.67Ghz, 1066Mhz FSB
M/board: EVGA 122-CK-NF68 NF680i SLI, S775, PCI-E(x16), DDR2 1200/533/667/800

Given these are the *ONLY* memory options to choose from, which would you choose?
1. 2Gb Corsair, DDR2-6400, 2x128Mx64, non-ECC, 240 DIMM, unbuffered, 4-4-4-12, E.P.P. Technology, H/S (£169.99)

2. 2GB (2X1GB) Corsair TwinX Pro LED, DDR2 PC6400 (800), 240 Pin, Non-ECC Unbuffered, CAS 5-5-5-12 (£207.64)

3. 2Gb (2X1Gb) Corsair TwinX DDR2 XMS2 Dominator, PC8500, 240 Pin, Non-ECC Unbuffered, CAS 5-5-5-15 (£229.85)

4. 2Gb Corsair, DDR2-1066, 2x128Mx64, non-ECC, 2x240 DIMM, unbuffered, 5-5-5-15, E.P.P. Technology, H/S (£239.85)

Thanks..