I have become a real fan of cordless tools. I use the cordless circular
saw much more often than the corded one.Not having to string a power cord
around is a real advantage. I also have a cordless jig saw, reciprocating
saw, and router. All but the router have proven to be very handy. The
router seems like a good idea but it eats batteries faster than they can be
recharged.
Having two cordless drills is very handy. When setting screws one has the
driver bit and the other has the countersink or centering bit. At times it
is also a good way to stay ahead on batteries.
Buy the best quality you can afford. Buying a cheap tool twice is no
savings and the quality of work will improve with better quality tools. My
cordless tools are about evenly split between Bosch and Porter Cable.