|Is Santa Rosa one of the biggest updates to Centrino, and from what is known, is it more revolutionary than Montevina?
Actually you got it right backwards. SR is a very very minimal upgrade to the cpu. The only thing it has is the slightly faster fsb (800MHz vs 667MHz). Everything else is basically the same as current Core 2 Duos. The biggest things coming with Santa Rosa are for the platform, not the cpu. But the next upcoming processor from Intel is going to be A LOT more than just a slight fsb increase. So that upgrade will bring much more performance than Santa Rosa today. But like moidock said, don't bother waiting, as you'll never buy anything. If you wait untill Penryn is launched, then their gonna announce another processor later on and you're gonna want to wait for that. By the time that comes out, there'll be another one announced and you'll want to wait for that. But the best computer you can afford right now and don't worry about future stuff.