I'm happy to introduce you to both Novacut 12.04 and Ubuntu 12.04 LTS:
Try it!
There are still rough-spots. Multicam and audio have yet to come. Novacut will continue to get better every month. But all the same, I still think that now is a great time to see what all the fuss is about.
It's wonderfully easy to install software through the Ubuntu Software Center. However, as Novacut isn't yet in any official Ubuntu software channel, the process is a bit difficult.
So to kick the tires, please follow these instructions to install Novacut on Ubuntu 12.04 LTS. Just ask us if you need help or get stuck!
You probably want to start by watching this so you understand a bit about Dmedia, and then watch this to get a good tour of Novacut.
Source code
You can download the source code from each component's Launchpad project page: