I'd like to migrate my Drupal Site over to WordPress MU. The project would involve first migrating over to a test bed, porting my current theme as a straight port (widgetizing it), then doing a version of the theme in a more traditional blog format and possibly creating an entirely new theme/layout. I'm 90 percent sure that I want to switch, but I want to first test it and compare the two systems with my content. I know I don't like Drupal. If the port goes well, then I would want it to become the main site.
An alternate version to doing a straight port would be, to create a WordPress MU module for Drupal. The only reason I would want to keep Drupal would be if I can get all the features of WordPress under my current system, and I don't want to break my URL structure. I'm open to either solution - whichever would be easiest and "fastest."