Check the estimator link above. It can really help get you close on price. I believe you can quote one or the other - quote the timing belt first, then quote the water pump and add the parts of the water pump to the quote of the timing belt.
My Daddy in KY had this done for me at a local shop. They charged less than $200. to change timing belt, replace water pump, replace spark plugs. I thought it was a good deal! My car is 2001 Toy Camry and it's been a GREAT car for me...it just won't pass Tennessee's stupid emissions test (10.00 test) !! bc check engine light will NOT GO OFF. Arghhhhhhh My tag expired LAST AUG. :(