I'm curious, I've seen a lot of posts about having more than 4gb of RAM (usually 8-12gb). My understanding is that 32bit Windows XP SP3 only addresses 4gb, anything else is lost. 64bit Windows can address more than 4gb and so can Windows 7 Beta.

Am I missing something about having more than 4gb of ram on a 32bit OS or are a lot of you guys running 64bit OS?

(I wish WoW would run natively on Linux ).