ActiveCollab Enhancement

We've just invested in an ActiveCollab license, and we need some additional functionality added. As nice as it is, we have users who need to write quick'n'dirty "To-Do" lists, of the sort like 37Signals' "Backpack", or "[login to view URL]" software. We'd like to implement something like the utility at [login to view URL] into a useable module within AC. Drag resorting is necessity (like TaDalists/Backpack). QUICK entry is necessity. Type (enter) creates new item, starts a another. As quick as I can type, it adds items. If I want to add notes after, I go back to it.