Hmmm....I am enjoying my new desk, but I find that I still have a tendency to lean over and hunch up as I go, which makes my neck and shoulders hurt. I suspect if I put my laptop up on a stand of some kind (David has one that tilts and is adjustable), that will probably help counter my hunching motion. Kevin also suggested that one of those wrist rest thingies might be good for my arms -- the last time I did a lot of typing on a daily basis, I ended up with shooting pains in my forearms, which were pretty darn annoying.
So I guess this is a call for suggestions from y'all -- what products do you recommend (compatible with a 12-inch Powerbook), which will make my situation more ergonomic? I know there's a wealth of information out there on this subject, but I find it difficult winnowing through all the kazillion products to figure out which ones actually help!