Peter and I did some work this weekend and got dasblog2dottext released! This is a very handy tool that Peter wrote; it imports all of your dasBlog content into a .Text instance, which is what made it easy for me to move my weblog here. Peter even wrote a little redirector that forwards all comment and permalink pages over to the appropriate entry on the new site.
What's funny is that I'm the one that wrote the BlogXToDasBlogImporter that's part of the dasBlog workspace. Hopefully I won't need to migrate to anything else for quite some time.
Anyway, the project is up on SourceForge...enjoy!