I fully admit to knowing next to nothing about the technical details of memory. I have no desire to overclock as I believe the pc will be plenty fast enough for my gaming needs. Reliability and stability are important for me rather than outright speed.
The memory I picked from scan is
1Gb 2x512Mb Corsair, DDR400/PC3200,128Mx64, non-ECC, 184 DIMM, unbuffered, CL2.5 *2 ie 4*512 total
The other option is roughly twice the price of the corsair value ram
1 Gb (2 x 512 Mb) Corsair TwinX-XL, DDR, PC3200XLPT, Cas 2 *2 ie 4*512 total
As I am not an extreme gamer or overclocker is there any need to pay the extra money for the faster ram ?