funny... the bouncing ball seems to be the first thing anyone learns in Flash
I learned quite a bit from a guy named Justin at
Cartoon Smart. Sign up for his newsletter and you get a nice big discount on all his new lessons that he posts. The lessons are very easy to follow... once you get comfortable with Flash... they may actually seem a little on the slow side... but he does a good job explaining how and why things work the way the do and videos are nice big mpeg's. He worked originally for ad agency I think and has a lot of animation experience which shows in his site and lessons.
Lynda.com isn't bad either but the lessons are not downloadable and its a monthly subscription service.
Steve's Tuts is a good free resource for lessons. Don't let the lack luster of his site fool you... he has some good content in the tutorials.
Flash Kit has some useful lessons as well, though I find the site visually a mess