I just want to throw out there that damn, if only OS X had a good task manager. I have had several instances, including one moments ago where my mac locks up from some faulty program (usually photoshop or itunes, thanks cover flow) that cripples the entire OS rather than the one program. Unfortunately, coming from a PC environment, this is really frustrating. I know you can do the CMD ALT ESC to force quit, but lets be honest, that never works once the system is locked. I use Time Machine but the nearest I'll ever be is the last hour, and that's still an hours worth of work down the drain. Saving often has never had as much meaning to me as it does now that I have a Mac . Don't hate on me though, I love the thing, but just have to say how frustrating it is that force quit is my only hope for saving myself from a restart. Boo-urns.