I use an old (semi-broken) laptop with Audacity as a "backup" recorder to my Marantz digital recorder - both feeding off the mixer. I've thought about using my Pi as the backup recorder, but haven't looked into what software might make sense. Any recommendations? And yeah, I'd feed the Pi with a Behringer UCA2xx. Then again, how would I get the audio file off the Pi SDcard into a PC? Hmm.