Panasonic 15.6v or 9.6v Makita --- both great at what they do. The Panasonic was recommended to me by a friend who owns a Office Furniture business. His crews tried just about every brand and after a while he now buys nothing but Panasonic's.. Mine is a used one he retired and it's still going strong. The battery recharges in 15-20 minutes and it will drive 4" deck screws enough for a 10x12 deck on a single battery. This is my main drill I use for all things except assembly (it's well balance but my Makita is a lot lighter).
The Makita I've had forever -- it still just keeps going and going. I did buy a new NiMH or whatever battery & smart charger at a closeout sale here in MI when Quality Farm/Fleet went out of business - 30$ out the door for the pair. But I still have the original NiCad and it's going strong. It won't drive to many 4" deck screws but for everything else a drill driver is for, it's just the ticket. Light, battery lasts forever, nice balance...
You don't need 24v or 18v to drive 1.5" screws in cabinent assembly, 9.6v is fine for that or even smaller... but if you want to drill a bunch of 3/8" holes, drill metal or drive those long deck screws (or drive 8" landscape timber screw w/a 5/16" socket head) then the Panansonic is what I recommend.
Mike-in-Michigan (Richland that is) <br> "We never lack opportunity, the trouble is many don't recognize an opportunity when they see it, mostly because it usually comes dressed in work clothes...."