XP-50 as MIDI Controller for SONAR Producer

I guess this will get moved, however, I thought I'd start here.
 
I have a Roland XP-50 keyboard and was wondering if I should use it as a MIDI controller for SONAR Producer or should I purchase a MIDI controller that has no onboard sounds and functions solely as a MIDI controller?
 
Like this:
 
http://www.sweetwater.com/store/detail/A500Pro
 
 

As long as it works, and gives you the functions you need, sure, put it to use!

I had an XP80 (Briefly - have since sold it), and yet I bought a dedicated midi controller just to have 88 weighted keys.  My main instrument is piano and I prefer the weighted feel when I play acoustic/electric piano.  But for all other type sounds I used the XP80 as my controller.

I quit playing for a number of years and now have started again. I reloaded my old Sonar 5, but need the instrument definition for a Roland XP-50. I would be extremely grateful to anyone who could help me out!
 
 
Jeff
Cincinnati