Wow. When I posted I had really hoped for some solid replies, but I didn't expect that kind of quality at all! Thanks Josh, wstar, and axio. Rep points added
I looked at the stuff you guys recommended... Not as expensive as I thought, thankfully - and Sears has some good deals!
I do have one follow-up question for now and that is what kind of applications is it typical to need an impact wrench for? When I was checking them out, even the small ones seemed too big to fit in the limited spaces in today's jam-packed engine bays. Am I wrong about that? Or do they come in handy other places?