My church currently records services using Audacity. We use Ubuntu 12.04.
As well as recording on Audacity, we also want to stream live on ustream.tv. However, when I tried this, I found that we could either record with Audacity or stream on ustream.tv, but not both simultaneously. I would expect that this will be possible, but I have no idea how to actually do this.
Please note that I'm the main person responsible for maintaining this system, but I don't actually use Ubuntu aside from this PC. So I have very little knowledge about Ubuntu.