Hey there. I use Movable Type for my primary blog, but I really like WP so I'm using it for a secondary blog. My main issue right now is that I need to transition from a WP-MU host (Blogsome) to my own installation. The instructions at Moving to a New Server aren't particularly helpful if one doesn't have access to the SQL database, so I'll probably end up doing it by hand.
Update: I successfully did the switch! I requested the relevant tables from Blogsome and they were happy to provide them. I installed WP for myself, imported the tables using phpMyAdmin, and was ready to go.