A little more than the command line, a lot less than Midnight Commander, and a home-row-based interface (I don't want to say vi-like, but then again, I just did). This is the file mangler I use, and I thought you might like it. Written in Python.
I have a program on the internet! It's not much yet, but I have plans. Still figuring out sourceforge yet, but that will come with time.