update: Here is my lego zapper! just quickly knocked together. I copied the basic idea of the branco gun, and have a sliding bit of technic lego which pulls against the B button.
works pretty well.
And in umbrella chronicles, if you select the zapper mode, then actions (knife slash, weapon select etc) are all on the nunchuk.
So I have the pistol in my right hand, and the nunchuk in my left. perfect IMO. Might buy that branco shell now that I've checked that it feels right
As for UC - well, its better than when using the wiimote on its own IMO...but still a little dull for me. I'm not into resident evil, but just wanted a good light gun game. This doesn't give me that feel.