I've recently come across some good articles on Actionscript optimization, so I thought I'd share them with those of you who are Flash coders. If you want to make your code/animation run faster, then there's a good chance something here will help.

For doing complex development with Flash, it can help to have a more powerful Actionscript editor than the built in Flash CS3 editor. I've been testing Flex Builder and FlashDevelop, both of which can export both Flash or Flex (Flex is Flash with a library of components built for making web applications). Both seem to have their pluses and minuses. FlashDevelop is free.