Niel Bornstein and Edd Dumbill are presenting this tutorial, and it’s looking good. The start is clear and structured, so we have a good idea of what we are going to do. And, it starts at the beginning: getting and installing Mono.
Mono is an open-source .Net environment that runs under various flavors of Unix and under Windows. If you have an Intel machine you can even boot from a live CD to try Mono out; download the image at mono-live.org.
Charles Engelke's Blog 