Can anyone give me a real life performance comparison between a Dual 1.25 and a 12 inch Powerbook 1.33? (default memory and graphic specs) When I purchased the desktop, my main interest was in power, but more recently I've decided it might be worth sacrificing some for portability. I'm thinking of selling my desktop and putting the money towards a new 12 incher, but I don't want to sacrifice too much in the way of performance. This is a key time for a laptop though, because I just picked up a new iPod, and with the current educational deal, that means I can get an additional $200 off the 12 inch for a final price of $1199. Not bad... Additionally, can anyone give me an estimate of fair market value for a 1 year old Dual 1.25 GHz, 512MB ram Desktop G4? Thanks!