I know for sure that I want a 24" iMac and these are most of the things I'll be using it for: I go on the internet a lot and stream videos often. I download and play a lot of music. I want to play movies. I do my gaming on other systems. I use writing and basic office tools. I have a digital camera with some but not too many photos. I also want to get into live video chatting and recording video for YouTube. So what should I get? PS - I apologize if people have done this a million times already.