Since you mentioned impact, we also have a whole bunch of Poter-Cable impact and hammer drills that serve us very well. They are just plain tough.
As I said above, the big box professional lines are all very good. The stores that sell these lines can't afford to sell inferior products.
I'm also probably more fortunate than most, as I have a friend who does the analysis and buying for one of the big box industrial stores.
Unless you are buying from the bottom of the line from consumer outlets, I think you will end up with a good kit.
Go luck,
Ken
