Hi there,
Well, if you’re comfortable with computers and software, you might just purchase some books and DVD training.
Total Training has very good options for After Effects. A major benefit to a DVD training class is you own the DVD’s and can watch them again whenever you want.
Chris & Trish Meyer also have some great books on After Effects.
I’ve found that between the Forums, Total Training and books, I’ve been able to learn AE just fine.
Hope this helps,
Jim