Thanks for the reply! I myself feel that those UI improvements (such as the smooth scrolling) are too minor to sacrifice the editing and extension power that Emacs and Vim give their users, but to each their own, I guess.

BTW, you can get Mac shortcuts out of the box using Aquamacs (I don't use it myself, but IIRC they're even porting it to Cocoa, so it should gain some UI bling as well).