Craig posted some Pickle's interesting videos running some games under Dosbox.
Dosbox: Blake Stone and Dark Forces
http://www.youtube.com/watch?v=YY_6I3kMXko
Dosbox: Duke 1 and Airborne Ranger
http://www.youtube.com/watch?v=YpFi847kZeo
Dosbox: Commander Keen 4
http://www.youtube.com/watch?v=rIoFwMs8xVs
Dosbox: Blake Stone and Dark Forces
http://www.youtube.com/watch?v=YY_6I3kMXko
Dosbox: Duke 1 and Airborne Ranger
http://www.youtube.com/watch?v=YpFi847kZeo
Dosbox: Commander Keen 4
http://www.youtube.com/watch?v=rIoFwMs8xVs