For all you Powerbook users or future Powerbook users out there- this will give you an enormous increase in speed and available power for your machines. I posted this on digidesign's website, but I thought I'd post it here as well because it is SUCH A HUGE DIFFERENCE IN SPEED! This will come in especially handy for video editors, 3-D graphics, and Digital Audio apps. From my Digi post: "I just hooked up my 1.33 ghz Powerbook to my 002 rack with an external firewire 800 drive for audio files and I was pretty dissapointed at first- the system was slow and unresponsive. However, I cloned my boot disk onto another firewire 800 drive and booted from that and then...this thing smokes! The 4500 RPM harddrive really slows this thing down- if you get an external firewire 800 7200 rpm HD for a boot disk- you will not be unhappy. judging by the CPU register- it's about 3 times more powerful than my dual 500 mhz g4 tower. That's a lot faster if you ask me. I'm very satisfied (BTW- I tried out a 32 track session with tons of sends and Waves plugs like tap delays and true-verb- still had over 2/3 CPU meter headroom)" For my external Hd's, I chose Seagate 120 gig 8MB cache 7200 RPM Hard drives in OWC firewire 800 enclosures- about 250 dollars for each complete kit. To download Carbon Copy Cloner- check here: http://www.bombich.com/software/ccc.html Good luck all, and man this Powerbook is not as slow as I anticipated once I got the FW800 drive up and running!