I started on MR because I was a Tibook freak. I'd bought a newer DVI tibook to replace my older 400mhz (that was Daystar upgraded to 550) and I was appalled at the fact that the DVI screen on the DVI Tibooks made the letters on my pages look smaller and harder to read. THus started an Apple evolution for me that ended up with me buying and selling machines until I've come back to a 550mhz Tibook with 1 gig of ram and a 60gig 7200rpm travelstar I have a 12" PB with 1.25gb of ram and guess what, this old Tibook is nearly as snappy -- plus the screen is just huge in comparision. I liked my former 14" iBook 1.42mhz with 1.5mhz of ram but I have a feeling I'm sticking with the old Tibook for the fact that the screen resolution is the same as the iBook (I think) but i sort of like the wide screen. So, should I drop 500 bucks on a Sonnet CPU upgrade on the 550mhz Tibook to get it up to 1.2ghz? Has anyone done this? It would be cheaper at this point than buying another 14" iBook (in a moment of feeling broke, I sold my 14"). One thing I do miss off the 12" pb and the 14" ibook is scrolling trackpad. I got hooked on that function. But happy as a clam right now on the old non DVI screen. I can see better on this Tibook than the 12" pb.