From Mosquito SW:
eNotes is an easy to use and complete tool to manage electronic notes in your Mac and synchronize them with the iPod and with other computers. eNotes allows you to create electronic notes on the fly, just selecting and dragging any text from any application to eNotes. You can edit, modify, save the note or use it as memo or task with priorization and due date features. eNotes adds its own menu to the Finder menubar, showing anytime the notes with due date listed by priority. You can access easily to the notes from any application.