I think what you are looking for is a a flashlight that has both an aspherical lens and a focusable head.
For example, the romisen rc-c6 and rc-29 in their loosened modes both have completely smooth outputs.
Im bad at taking pics, but here is a pic of the rc-29 on a white wall and then on my kitchen:
http://img188.imageshack.us/img188/4025/rc29wall.jpg
http://img25.imageshack.us/img25/6025/rc29kitchen.jpg
I only bought the basic version from kaidomain, I recommend getting one of the upgraded versions from shiningbeam.com, I really wish I had because I love this light so much.
I think you will get a similar kind of output out of a maglite with an led drop in or one of the zoom to flood lights off of dx.
You can also almost get something like this from a fenix e20, but its not as smooth, it does have the added versatility though of being able produce a candle mode and a more standard mode as well. The rc-29 when fully focused can throw like crazy, but has a weird looking beam profile.