For some inexplicable reason, the pre-unibody MacBook HDD upgrade is a breeze (I think you take out the battery and one screw?), but the Pro requires removal of the entire top case--a 21-screw nightmare complete with a "wiggle this stick around inside and hope you hit the latch that you can't see" step. I don't recall off the top of my head how things have changed since the unibody models have been released, but if this guy has a Pro that's more than about a year old, he's got correct information.

Yay for competition!