I bit the bullet and bought my own domain www.mattcorr.com a few weeks ago.
This will be used to link to my smugmug site which I have also gone pro on. Just need to finish a few special projects first before focus completely on the smugmug site. I have a good good ideas which I am sure I will be able to implement (probably with the help from the fine folk at dgrin.com)
I bought the domain from www.joker.com which was recommended by Smugmug. Joker appears to be based on Germany and I have found it rather painless to use. Not sure how it compares price wise, but it seems pretty sweet.
As a bonus I was easily able to setup blog.mattcorr.com to point to here.