I curently have a Casablance Avio but am considering a switch to an Apple based video editing system. Has any one made a similar switch? What is your opinion of this move?

Second question. Where do I find a 3rd party products for video editing on the Apple?

Thanks in Advance!
Ron

What sort of 3rd party products are you looking for? Here's one place to start: http://guide.apple.com/uscategories/video.lasso