Peformance house brand Forte has Micro Shift for $189 for the ten speed, $139 for the 9 speed. I have about 600 miles on the shifters (10 speed) and they seem to work pefectly. They have a small paddle for the shifting to smaller cogs and its my favorite part of the shifters.

I have had them called crap, but they seem to to function pretty well for the price.