I'm looking for a program similar to Van Dyke's CRT which will allow me to access a remote system via telnet but allows me to load a Keymap file for that session.
Does anyone know of an application like this? Either commercial or GNU?
Well, there are tons of GNU terminal emulators that you can use, especially since you have to compile them from source (just install the Developer Tools that come with your OS X installation discs). I've done this with centericq and it works fine.
As for native OS X applications, you can use something like ZTerm.
I guess I must have misunderstood. When I hear "terminal emulation", I think something like tn3270 emulation like ZTerm, minicom, or seyon...not so much the command shell window that's called "Terminal" in OS X.