My 2 current [older] keyboards are:
1. Yamaha P-200 - 88 key digital piano - main controller.
2. Novation ReMote 37SL - 37 key smaller desktop controller.
I'll be selling the ReMote 37SL & ordering the new Nektar Panorama P6 [61 key] tomorrow.
They're currently configured for seamless integration with Reason & Cubase, as well as an ever growing list of VST FX & Instruments, but will be adding more DAWs as they go along.
I think I read that Sonar was one of their next plans fairly soon, but don't quote me on that.
Great reviews so far.
Some find that they're not reaching for the mouse nor looking up at their monitors nearly as much after getting use to it's design & workflow.
Check it out
http://www.nektartech.com/PRODUCTS/Panorama-P4-P6