I am just about to build a new p.c with the Abit NF7-S (V2.0) and an AMD.3000xp chip please can you tell me which is better 1.5gig of PC 2700 (333mhz) or 1gig of PC 3200 (400mhz) of ram
thanks
A 3000+ won’t really benefit from memory that has a FSB>166Mhz (PC2700). As the most PC3200 memory has quite high latencies (up to CAS level 4) the system will probably run slower than with standard PC2700 (CL 2 or 2.5 is standard).
If you are into overclocking (Nforce2 is good for OCing) PC3200 memory might be a good idea, so you can sync the CPU’s FSB with the FSB of the memory…
If you are going to buy the newly announced Athlon XP 3200+ with 400Mhz FSB, then the 400Mhz memory would fit you. But do you have that much patience and money? 
I’m running 1GB PC2700 cause if you want good timings on PC3200 you have to pay overprice for it, PC2700 RAM with good timings is much cheaper.
Good timings is always a big advantage.