Game Design With Flash (Cs4)

I have started learning the basics of game design using adobes cool flash cs4 suite. Actionscript seems to basically be php objects with a little syntax variation, so the programming side seems easy enough for me since I program with php objects often. Wondered if anyone could point me in the direction of any good forums / tutorials that flash developers get together en mass to help each other out with development problems?

Also maybe if anyone had any hints or tips then you could also put them as a comment for me to check out under here.