I am not trained as a piano player. My first instrument was Tenor Sax and I only converted to keyboard three years ago. I consider myself a keyboard player and not a pianist.
Of course my other alternative, since I really like the T3 FSX Keyboard, is to just add a Motif Rack and use the T3 as a Master Keyboard when I want to play Motif sounds.
Great idea, Joe...if all you want is to play Motif sounds from the T3's keyboard.
You can even record the Motif Rack's sounds in the Tyros3's audio recorder.
Since you are
primarily a "keyboard" player rather than a pianist, the Yamaha FSX semi-weighted action should work just fine....
in my opinion, you'd hard pressed to find anything with a better touch/response/feel.
Ian