At this moment going to a Nitrogen Keg set up isn't going to happen. My local hombrew shop has the metal mini kegs with a carbonation setup that uses the small CO2 or N2 cartriges. Althought is sounds like I still may not get the desired cascade effect or the very fine head (I'm understanding this is a product of the Nitrogen, the tap, or the widget?).
But it still sounds like a good experiement to conduct. Anyone had any negative comments regarding these mini keg setups?