DATA: The book the UW uses to teach Calculus showed up on Suprnova the other day. Here's the link. (Wish we had Bit Torrent around when I was a freshman in college. We had to pay all $140.00 for the god damn tome! Spoiled kids!)
It wasn't my favorite Calculus book though. I liked the text used by the Seattle Community Colleges better: Calculus, Concepts and Contexts. It's by the same author (James Stewart) but to me seemed more approachable. However, it's not as comprehensive for the upper level stuff.
The best Calculus book ever though is "Calculus Made Easy."
And no, it ain't some newfangled dummies book. In fact, it goes all the way back to its first addition edition in 1946*. It has taught generations how to first understand the concepts of Calculus before moving into the sordid details; something standard text books rarely do.
* See commentor below.