My dealer quoted 5-$600 for the T-belt alone and another $100for the WP. I bought a " NEW" Bosch water pump at PepBoys for 49.95 and an OEM belt for $69.95 or 59.95 and did the job myself with the help of a friend (who has a better back than mine). I also carefully checked all the idlers, oil pump and seals for leakage. I replaced the thermostate, coolant hoses and drive belts at the same time. I used ALL OEM parts except the WP and the complete job was about $190. You mush be machanically inclined to do this job as it is not a good place to practice. Go to www.endwrench.com
and they have a file on how to do it correctly.