I have a pair of these:
http://www.performancebike.com/bikes...400072__400072
that work very well for temps down to about 40°F. Best I've found. For colder than that, the best is the PI Lobster gloves.

For warmer, when it's too cold for short-fingers, but too warm for really warm gloves, I like the PI Elite:
http://shop.pearlizumi.com/product.p...color_code=021
Surprisingly wide temperature range.