regular cordless drill and impact driver set.. Love 'em.. only issue is they are about 6 years old and one of my two batteries has gone dead.. you can replace them, but they aren't cheap.. I've heard Milwaukee makes really good stuff, as well, so I don't think you'd go wrong either way.. If you CAN get a set with an impact driver, I'd do it, tho - its definitely come in hand a few times for HUGE screws - like 3" long - that you don't drive very often, but its nice to have that additional power..
Only thing you might look into is the battery life for either and replacement batteries cost.. you really want two batteries - one charging while you're using the other..
Friendship is like peeing your pants.. Everybody can see it, but only you can feel the warmth..