i just changed my belt like kalian said,
i had around 76k miles at the time, and to tell you the truth, the old timing belt still looked pretty close to new, so i imagine it could have still gone a long time just fine..... but like bagpiper said, better safe than sorry,
personally i wouldnt recommend getting into it without atleast some kind of help if you dont have any previous experience with it. I had a buddy help me out and we also had the shop manual and it still took us quite a couple of hours.
We took off the side engine mount, serpentine belt tensioner, crank pulley, power steering pump and ofcourse the wheel and wheel well lining.
just so you know, to take off the side engine mount, you'll need a deep socket to get the bolt off, i THINK it might have been an 18mm deep socket but i'm not positive, you'll have to double check that.
One thing we kept having issued with, when we were putting on the new timing belt, 1 of the sprockets kept moving 1 or 2 teeth forward, we tried 3 times with the same result, what we ended up doing was misaligning the sprocket those same 2 teeth in reverse and then we put on the new belt and it just realigned itself.
all in all, it was a pain in the *** and i'm glad it's over with, lol
but hey, i'd never pay over $1k for something i could easily do myself with a little help