I did a similar research recently and figured out the Mackie Universal Control and Behringer XTouch are the best ones around which work with Sonar.I am left disappointed that a number of other controllers in the market like nektar panorama , Icon QCon, don't work well with Sonar.The novation zero SL is also another option with limited control.I read somewhere in these forums that the ssl nucleus as well does not work well with Sonar. I almost thought of switching to pro tools out of frustration but then feature wise Sonar does a great job at the price point so....