I've been contemplating full size vs tenkeyless for a while, since I do use my numpad. Growing up I had to be ambidextrous for certain tasks (working on pesky European cars, family business), so I started using my left hand for numpad-duty while traversing text fields with my mouse/right hand. I know DSI has lefty boards, but I'd much rather have a seperate USB numpad (best if I can find mech one) and tenkeyless board at this point. It's really awkward using left hand on numpad and right hand on mouse, then moving the keyboard back to type normally.
I can get a new Das locally for $114cdn shipped after tax, whereas a Leopold would be $132cdn shipped but might get dinged by taxes. Hmmmmm.....