Kingston 512 Megabyte DDR 400 Mhz PC 3200 CL 3 What exactly does CL 3 mean? I see other RAM by the company listed at CL 2.5, etc. Nevertheless, the Intel 875PBLZK I plan on building utilizes 400 Mhz PC 3200 memory so I guess it should be fine regardless of what CL 3 is or does. Lastly, does ECC memory really make a big differance? I thought I read somewhere that the Northwood already has error correction, so it seems pointless, I guess. Thanks for the info.