I know they've only just been released, but when someone gets theirs can you please try out an HD video using the H.264 codec. I am really interested to see people's feedback. Trying them on my Rev A 20" the video is a little choppy. I can't get to an Apple Store to try it first hand. If it's good, then I am seriously going to look at getting one. My current iMac was only bought in March! But faster processor, better GPU, and larger hard discs is just too tempting for me.