Cordless drills are one of the few purchases in life that bring real happiness. They're not perfect, but drilling a small hole or driving a screw in seconds as opposed to fiddling with extension cords is bliss.
I am still to this day happy with my $300 18v cordless dewalt with an easy self locking chuck. I thought I'd have buyers remorse with that price tag, but I tell you, when you end up needing to frame a basement, put up sheetrock or basically do anything past a simple job, it's money well spent.
