Reggie Ashworth (http://www.reggieashworth.com/appdelete) has released AppDelete 4.1.5, an update to his application deletion utility for Mac OS X.
Via drag and drop, AppDelete will uninstall anything along with all of the associated items. Version 4.1.5 fixes an outstanding bug in the registration system that could cause a user to register multiple times, and fixes several bugs that could occur when using the Genius feature.
AppDelete 4.1.4 costs US$7.99 for a single user license. Upgrades from Version 2/AppDelete Lite are $3.99. A demo is available.