Looking for a UI control that will allow me to do bulk adding with edit and delete

I’m working on a couple of projects now that have the need for quick-edit lists.  (Lists of free-form things like Actions, Reasons, etc.).  I want the user to be able to quickly add a lot of these items, almost in a brainstorming type way.  Editing and deleting the items should also be easy. 

Here’s a quick mock-up of what I’m trying to accomplish:

I see an article and video on the web from Elijah Manor (a .NET MVP) about hooking up a control called jqGrid (download page is here) that works with .NET MVC.

It looks like it could be a lot of work to use that.  I may roll my own method but I’m not yet sure.  TBD tomorrow…