OK guys, so i have a high def TV (40" with res 1366x768), i have a 12" powerbook, and i will probably buy a 13" mbp (if we ever see them, otherwise a 15" mbp) in the fall. What i'm curious about though, is what this whole high def thing is. I know that i can play 720p video on my powerbook, but not 1080p, although neither fit on the screen. Also, i can play 1080p video on my girlfriends mbp, although that doesn't fit on her screen and when dual monitering with my TV it doesn't fit on the TV either. Are the 3 different formats different quality? can you buy TV's that support the full resolution? what will my TV support, because none of the 3 formats have the same resolution as it! What should i expect from the coming change to hi def TV Also, what are your opinions of the format? You guys in america have it already right?