That's one thing I don't uinderstand about RAM and that is rating of the memory speed like DDR400, DDR500, etc. and then there's the actual latency speed. Obviously, the faster RAM you get (ie, DDR550), the latency is increased. So with that in mind, would it be better to go with a DDR400 with lower latency? That is the question.
What about this one? I'm trying to balance the speed and latencys:
G.SKILL 1GB (2 x 512MB) 184-Pin DDR SDRAM Unbuffered DDR 550 (PC 4400) Dual Channel Kit System Memory - Retail