Hi, I'm coming from a PC and not quite sure what to expect as to the RAM in a mac. I'm planning to run Final Cut Express and I'm wondering if 8 gigs of RAM is going to make that much of a performance difference with the application. I know FCE recommends a minimum of 4 gigs or will having 8 gigs be like a putting a skinny guy in a fat man's pants. Sure, it's nice to have the room, but it's just not going to get used that frequently. I'll be getting the 3.06 GHz with the ATI 4850 video card and looking to edit HD video. Thanks for any help and advice you can give. The 24 inch imac looks incredible. Looking forward to it.