chamlin
jscomposer If you go laptop, just make sure it has fast external connections for the audio drive.
Hmmm...what do you mean, fast external connections for the audio drive? My Fast Track Ultra is a USB 2.0 device.
It's good practice to keep the OS and Sonar on the main drive, and all your audio and VST libraries, etc, on their own drives. I have only used external drives on eSATA, but USB3 might be adequate if you're just recording basic audio tracks. If you opt for a mechanical drive, ensure its actually 7200rpm and not 5200.