Interesting, thank you! I've read reviews where peoples speed drops by 40% once they go with Vista, with systems similar to what I am building. That would seem unacceptable to me. Do you know anything about that? In general it's true that Vista will run slower than XP on similar hardware (there are lots of XP machines that either can't run Vista at all or run it very slowly). There are a few buts, though.... XP tends to really slow down over time as you add and remove applications. It is alos much more susceptible to viruses/spyware. These will slow your system down, as will attempts to prevent them (running Norton, for example, really takes a big hit on your system resources). More importantly, applications which really need speed (primarilty audio and video) are (or are going to be) written to take advatage of two (or four, or eight) processor cores). If you are running something like that, you might well run considerably faster under Vista. A speed penalty, even 40%, won't matter much on apps like word processing, which don't come anywhere close to taxing the processor. There are also ways to speed up Vista easily. Much of the eye candy can be turned off when not needed, and I really like Ready Boost - plugging a thumb drive into a USB port causes a speed boosr - I use an old broken MP3 player for this. I guess threads like this show why Macs are so popular for recording.