For their entry in the cordless screwdriver wars DeWalt decided to go big. The DW920K-2 weighs a whopping 3.5 pounds. With that weight you get about twice as much torque as the other models. This screwdriver is also one of the cheaper ones, but it's a Ni-Cad model. Still, this model has been around for a while and seems to be very reliable. If you like the "stick driver" format, but need something with more torque, then this may be the drill for you. And there's an added bonus. This is one of the few cordless screwdrivers with a variable speed trigger.
This a one speed drill, but that's not an issue since it has the variable speed trigger. The RPMs are 0 to 500, which is slightly lower on the top end compared to its competitors. But the extra torque will make up for what you lose in speed. The chuck is a 1/4" hex shank which is what you need on this kind of product. It allows you to quickly change bits. Since this screwdriver has the torque to do some drilling as well, you might want to pick up some drill bits with has hex shank end. (I recommend you do this anyway since it saves so much time.)
Since the drill is a little larger than most, DeWalt was able to include a bit holder on the bottom. This is a nice touch since most people need two bits: a straight and a phillips, for most of their work. It doesn't mention this on the product page, but the DW920K-2 does have a clutch. This is a little more important in this drill since it has 80 in-lbs of torque. You might actually need to use that clutch for fastening applications.