I would like to disable the action bars in nUI so I can use a different addon for my action bars... can I do that?
No... disabling nUI's action bars would break much of it's functionality. nUI is one tightly integrated mod intended to replace using a collection of mods and will never purposely support disabling it's built in features so they can be replaced with third party equivalent.
You can, however, use other mods to *add* functionality to nUI such as special bars for quest items, etc. These are features not currently built into nUi that will be added at a later date.
What people don't get is that I am, ultimately, an artist at heart.
My brush has two colors, 1 and 0, and my canvas is made of silicon.