Pretty much any library can be made to work with a breath or wind controller. You can either set attenuation to breath, or maybe mod wheel (for x-fading layers). Something I\'ve yet to try, but will do so now that I\'m thought about it, is to use breath for attenuation, and reed bite for mod wheel x-fade.
I think it was an excellent addition to my gear, but do a little search and you\'ll find quite a bit of talk about it, and instructions to make the changes I suggested above.
Just do a search in the Sample Libraries forum at Northern Sounds, using wind and breath as your key words. There\'s been many contributions, specially the ones done by Bruce Richardson, that you should really read.