I'm having problems with my Windows PC firewire driver to my Mackie Onyx. I think I'm overloading my PC and there is apparently a known issue with the Mackie firewire driver for Windows. Apple seems to be geared more toward recording and multi-media and I'm hoping replacing my PC with a (more powerful) Mac will be a step in the right direction. I'm considering replacing my Windows based PC with an Apple and was wondering whether a MacBook would be a decent choice? I would prefer it over an iMac for the portability. My budget is $1k or less which means I'm looking at a used computer. I one on craigslist with 2ghz Duo, 2 Meg RAM, 60 Gig HD. Although the HD is small I'm wondering if it would be doable to add an external HD (they're relatively cheap for a 500 Gig HD!) via firewire. Would a macBook like this handle the job? Thanks in advance for any advice!