FileVault

Apple’s FileVault encryption scheme in Mac OS X 10.3 is really rather good, and there’s an excellent article over at MacDevCenter.com: with lots of details. Recommended if you’re considering using it. I’ve been using it since I first installed 10.3 on the iBook, and have had no problems with it – but others have had problems, and it’s worth checking Apple’s support boards if you’re unsure.