The problem is that PC3200 isnīt still an official JEDEC standard, thats why you see on the website of some manufacturers which PC3200 modules work perfectly (i.e. Asus).
But I still canīt seem to get why ppl buy a 64bit CPU in a 32bit era. Plus the fact that they buy a lame single-channel chipset for it. Its like buying a ferrari and only use it to get some groceries around the corner.
My opinion about the Athlon64 is that ppl should wait for Mickeysoft to present a retail 64bit OS (not a beta, cause we all know the horror of MS betaīs) and the Socket 939 for AMD (which has a dual-channel memory interface, thus increasing the performance dramatically).
This are just my 2 cents...