I'm thinking of buying Final Cut Express. I want to be able to do like 5 video tracks, some effects(1-3 per track) and like 5 audio tracks in Soundtrack. But before I buy, I just wanted to check if my iMac can run it OK. Here's what I have: iMac G5 2.0Ghz, 512 RAM, 128 VRAM. Is this enough. Do I need to add more memory? Do I need to buy a powermac? Thx, Serg.