When a friend told me I should try out Microsoft OneNote 2007 – I think his exact words were, “Dude, I don’t know how I lived without it!” – I downloaded the trial to give it a try. (Interestingly OneNote was not part of the Office 2007 Professional package, it is only part of the Home and Student package.)
So far, I like it. Or at least the concept. I’ve not put too much into it yet, but I see the possibilities.