I hate Office on the mac... I just don't understand what they did w/ 2008... I actually like what they did w/ 2007, and figured that was what they were going to throw on the mac side... since my first reaction was 2007 was "that belongs on OS X."
but no, it's disjointed, I've never liked the floating palette, and not all the toolbars can be docked, and you can't quickly customize it IMO.
Crossover+2003 is what I'm thinking of doing now, but it breaks the smooth OS X look, heh. I found OO to be disappointingly slow.
iWork is awesome IMO... but where it fails is being able to work on stuff with other people. which is what I do far more of, so it's not a good solution.