> >For those on the List with the 'almost original' Ti-books, you might be interested in what I just read at MacInTouch: > >Sonnet Technologies introduced a new PowerBook G4 TiBook processor upgrade for PowerBook G4 550 MHz and 667 MHz (VGA) models. Available only with factory installation, the $499.95 upgrade features a Freescale 7457 G4 processor running at 1.2 GHz, plus 512K L2 onboard cache. The PowerBook G4 TiBook processor upgrade is compatible with Mac OS X through 10.4.x and Mac OS 9.2.x. > >regards, Trevor Whoa... that looks perfect me...minus the cost , for now. With a dead firewire path in the sluggish-seeming 667, it sounds too good to be true. I think Apple wants almost double that to do a straight across mobo swap. Interesting. Extremely so. brian s