Since getting a MacBook Pro... I've only turned my Athlon on once, and that was to copy over some files from it.
BootCamp works a treat, and Paralells VM actually Runs Windows applications at pretty much full speed and integrates them nicely with MacOS... But only Bootcamp gives Windows access to the 3D board... so you need it to play games.
The thing I've noticed since using MacOS, is how everything just works... I don't have to spend a few hours a week just fixing problems... or wandering why my USB keyboard has stopped working... or trying to find the driver CD for my obscure Pro Audio hardware... everything just works no fuss.
