Having just set up WordPress on here this morning one additional thing I wanted to do which was to put a redirect in place to redirect my sub domain on wordpress.org (which is http://chrisshennan.wordpress.com) to point to my own domain name.
My main reason for doing this was that when I comment on some of my friends blogs (mainly those on blogspot) I have posted the comment using my WordPress profile which only allows me to enter my wordpress username which then links to username.wordpress.com. As a result I would have to be adding my new blogs entries to 2 blogs which would be a waste of time and bad in terms or SEO (duplicated content resulting in a lower search engine listings).