You can now purchase Eric Idle's concert based on The Life of Brian — Not the Messiah — in many forms. DVD's, Blu-Rays and CD's. Soon,we may be able to arrange for Eric to come to your home and sing this little number in your patio.
The CD, by the way, is actually a CD-R, meaning that when you order a copy, they make one up special. There is apparently no mass-distribution CD release so you probably won't find it in your local CD store. That is, assuming you even have a local CD store.
Here's Eric leading us in song.