With the release of the 17" Powerbook I find myself seriously considering getting rid of my desktop computer. I use my Dual 800 (first dual Quicksilver) mostly for audio and music production in my homestudio. But would love to have a machine which makes less noise and that I could take with me. So I was wondering if anybody here was using the "older" Powerbook G4's for audioproduction and could tell me about things like latency in VST instruments, harddisk performance with multiple audiotracks with just 4200rpm (I use SCSI U160 and 8MB cache IDE drives at the moment). And things like that. Will I be missing my second processor much if I get the 17" 1Ghz Powerbook? Will I experience a great negative difference in speed coming from my dual 800Mhz? Will I like the Motu 828 which will be replacing my M-Audio Delta 1010 when it comes to it. Some firsthand experience from people using (for example) the 1Ghz Powerbook 15" for audio and MIDI would be greatly appreciated.