I second that. I know quite a number of very high calibre C# developers and in my experience getting good C# developers to work on interesting projects has not been overly difficult.

I'm currently building a site in C# and deploying using mono on Linux. Very impressed with mono so far. My site has not been tested under high load, but nothing is suggesting to me so far that mono is not a viable option, and a solution which solves many of the problems pointed out in the article's comments.