I just bought an athlon64 3200 and found a beta of windows xp x64 edition but is it worth it at the moment? The only thing I really do atm is play world of warcraft (haha I know), and I don't think it has support for 64 bit processors. Are there some advantages I don't know about that make it omg essential to use a 64 bit operating sytem over the current popular 32?