Re: Crysis and UT3 64-Bit games right out of the box?
64-bit is the future, I'd never step back to x86 now especially since all my hardware and drivers are fine (well except Creatives X-Fi drivers that could be better, but hopefully they will fix it soon). I'm surprised MS don't push Vista x64 more now that the drivers for it are very mature. NVidias x64 drivers perform identical to Vista x86 edition.
Sure the benefits running x64 code games today are tiny, but they do exist and the x86 memory barrier doesn't exist for me anymore.