I have Sonar 7 -32 and Sonar 8.5 64. X1 and    Reaper expired demo , Cubase LE 5 and Wave lab 7 elements. 
You could have every version of every DAW ever written if  your up for it. 

I even have a Atari emulator "STeam," and can run my old Atari software ,,, but I don't bother,, I have Sonar now..  

Another yes from me:

Sonar X2
Ableton Live 8
Reason 5
Nuendo
Vegas (video)

I have Sonar X2 and Harrison Mixbus running on the same DAW, at the same time.