Currently I have 1 ghtz Pc with windows xp installed, I hope to be getting the superdrive imac late this summer after jaguar is out. I do alot of video editing, but i know a powermac is not coming my way. One of my friends has offered me a free copy of avid express. Is it a good program. Can I just keep my annoying Pc and save myself alot of money? or should i still buy the mac? is avid really worth installing on my pc at all?