So my 24" screen is full 1080p res correct? Then why isn't it common since for apple to put a hd or blue-ray drive into the iMac by default, is it too slow of a drive to be plausible as the only dvd/cd drive on the computer? And, what I also would like to know is what is the easiest/cheapest way to add a hd drive (probably through usb) and is there any way I could hook up my xbox 360 to the iMac and play in true 1080p resolution? Thanks