Probably asked and answered, but: I have a PB 12 1.33 and am thinking of selling it and buying a refurb PM 1.6/1.8 (depending on availability). I don't travel anymore so the PB is pretty much a desktop these days. Since i mostly do office stuff (word, email, web, watch movies) and little/no video/music/3d animation/photoshop, I'm wondering how much difference I will really see - is it worth the hassle (and risk) of selling-buying? In trying out a G5 at the apple store it didn't seem like the desktop, "routine" experience (opening, closing files and apps, etc) was all that much faster. I am sure the SATA drives will be noticable and that alone could swing the decision. Opinions?