Many thanks for your responses! Apparently I was not looking for the right term in good ol' Google. I searched MIDI Control Surfaces and BOOM.....there they are.
Just placed an order for a Korg nanoKontrol Studio. Cost is $150 from Amazon. 1 day shipping free with Prime.
Has faders / knobs / xport controls / and Bluetooth.....(hmmmm). I am a home studio with a Korg Triton Extreme and Roland SPD-S....so the keys and pads side of things are covered.
This product is not designed specifically for Sonar, but the documentation does discuss Sonar Specific detail, so I hope that's a step in the right direction.
http://www.korg.com/us/products/computergear/nanokontrol_studio/ I'll report back on my success or failure if ya want.
Cheers, RZ