I've picked up the Bosch Li-Ion 10.8 (now rated as 12v) drill and impact driver, and couldn't be happier. My dad and FIL liked them so much that I picked up one for each of them when HD cleared out the impactor for $99. At the time, Bosch had a rebate that gave you a free drill body with the purchase of an impactor. It probably wouldn't be what I would choose to put up drywall all day, but the small body impactor packs a lot of power, and I've driven 3" deck screws through signs, tapcons into cement, and all sorts of things I did not think it would do. The drill/driver is a little underpowered, but it's great for installing pocket screws.