Ok here's the deal. I have 2 MBP C2D, 1 G5 iMac, 1 printer, and the old Airport basestation. Would it make sense for me to get a new Airport basestation, and like a My Book (500gb or a tb)? I am doing a lot of video, and i also have a lot of videos that are shorter that i want to store somewhere. I also want to be set up for backing up all 3 computers when time machine comes out (i know any advice about that is speculative). also does anyone have any advice on My Books (or a better external HD)? Thanks!