I have a Milwaukee impact driver (slip collar) and the drill setup. For both of those, two batts and a charger was $199 at Rural King. Only downfall to the impact driver is it has less power than a regular 3/8 impact, but it will still break the hex bits off every once in a while so keep extras with you. The lithium batteries are nice and they have a charge check on them which is cool, so you dont hike up to the roof with a 1/4 charge battery on accident! The rubber grip is starting to fall apart on mine, but I blame that on being soaked in oil all the time at work.