Found the motherlode of hand sheets on Nick Bruno's blog. (Yes it has the Milt Kahl sheets, but so much more.)
Nick also has this other great post about brainstorming up a shot that's not cliche.
And a fun one on Eyes
This dude is still the finest example I have seen of hands emoting and thinking (and I can't find anything out about him, 'cept he lives in Romania and his handle is "anymator")