16TB of page file baby!
Hopefully Microsoft will be releasing a trial version soon, they've had x64 Edition up for download for a good year and a half now, it's certainly come a long way since back then when AMD first launched their AMD64 line of CPUs, which Intel have now cloned into their Pentiums. Finally we can get the Windows desktop PC over to 64-bits.
And before the Apple fanboys start going on about them already having a 64-bit OS (which they don't even Tiger - which isn't out yet only has some 64-bit extentions). Microsoft had one long before you - this new one is just to support AMD64 and Intel's clone. So don't even bother trying to start, oh and we can actually manage backwards compatibility something Apple seem to break every 20 minutes.