Just in case you haven't seen this yet: http://www.codethinked.com/category/IronRuby-via-C-Series.aspx I'm sure it's a handy tutorial for learning Ruby (using IronRuby for .NET) the language if you've already got C#/.NET background. I personally think the DLR will become a huge thing...

Of course it's still in Alpha, but get 'em here ! Took it out for a quick spin and it seems still rough around the edges, but hey...no need to build it yourself anymore if you want to try it now.