The neck on my Ibanez Montage is so thin, after playing it quite a while I find it hard to play barre chords on my Breedlove, which I had thought had a pretty fast neck.
The Montage may not be what you're looking for, though, but it's very versatile for gigging. I'm not sure whether Ibanez' other acoustic models share that neck profile, but if they do, they'd be worth checking out.
The Montage is demo'd here:
http://uk.youtube.com/watch?v=aaeL3d9TuEw