I use the old faithful 18v DeWalt and beat the crap out of it.

Not that you are asking, but if ya'll ever have the need for a slightly lighter duty drill/driver, I picked up a Makita 10.8volt kit that has both a drill and driver and LOVE that thing! Great for around the house stuff where you don't want to lug a 50lb 18volt drill! Especially if you are working over your head.