With Subversion, I used the Visual SVN server to get it up and serving in a few minutes. Is there an equivalent for Mercurial, so I can run hg.mydomain.com?
for Mercurial server on Windows, you can get a very good tutorial here: http://www.jeremyskinner.co.uk/mercurial-on-iis7/ or here: http://blog.schuager.com/2010/03/how-to-setup-mercurial-server-on.html
It's pretty easy to set up and works like a charm.