There're some good Chess960 resources out there.
This is a great site, with lots of tips, links to instructional videos and games. It's a blog run by Mark Weeks, who posts often, so put it in a RSS/reader application like Google Reader or Bloglines to follow it.
The Chess960 wikipedia article is a good place to start. The only tricky thing about Chess960 is the castling rules, and these are carefully explained there.
I'll post more resources as I find them. Maybe I'll mine Mark Week's blog and come up with some categories. A wiki might be a better way to organize this than a forum. Perhaps we could put some resources up as wikia pages.