SH play help

[mikeyvegas]

A little background:

I've been a winning player moving through the ranks going from 1 table of .5-1 up to 4 tabling 5-10 full(over 2BB/100 at all levels with at least 20000 at each limit) and thought I would start to work on my shorthanded play. This past weekend I logged 2700 hands at 3/6 6 max and lost 110 bb's which I'm not too troubled by. What troubles me is that I just didn't feel at all comfortable with my pre/post flop play. I feel like I was raising way too much pre-flop and calling down too much with marginal hands. Are there any good books or posts that any of you can point me to so I can improve my short-handed game. I'll also start posting some hands tonight.