Well it really doesn't matter. if he gets ValueRAM PC3200 at say 3-3-3-8 timings, he'll be able to downclock it to 2-2-2-6 timings I believe in the case of Kingston valueRAM. It's indicated to run at those timings when downclocked to PC2100 and 2.5-3-3-7 at PC2700.
You'd have to look at the SPD table of course to make absolutely sure. But if the PC3200 valueRAM is the same as some PC2100 then might as well get PC3200 and you're covered for when/if you upgrade to a faster mobo and CPU FSB