I got my belt for $38, but I have a shop hook-up, i think they're normally like $84 around here.
Changing a timing belt is sort of a pain in the ass. If you have a/c and p/s it'll definately take longer because those belts need to be removed along with the valve cover, the timing belt cover and a motor mount. Plus, if your s**t is rusted that adds to the headache.
If you've never done it before i suggest you have it done professionally. Watch out though, Honda charges like $500, but that includes parts and labor for all the belts.
Just remember, THE TIMING BELT IS VERY IMPORTANT, so get it done and get it done right. Good Luck!