Have you guys tried this? I've only been at it for 20 minutes but oh man. I think you'll like it: http://geosonix.com/top/
Rig it to your host and control softsynths or hardware...also sends OSC. The Mac beta is available on the front page, Windows coming soon. I found an old Windows alpha from February and have been using it: https://bitbucket.org/chrisgr99/geosonix/changeset/6b0e727fa bfafb05898c01bc502bce9d73b5dac6
It's based on Iannix(new to me too) in ways but diverges in others. Really it's best to just see it in action here: http://vimeo.com/user4679000/videos
Sorry if this looks like an ad, but it blew my mind pretty hard when I started with it. The possibilities are endless, and Aalto with it is PB + J...
Rant over now! Good day-