First off, I'm not sure if I have named the tool I am looking for correctly or not. Anyway, I have heard from different people that there is either an attachment or a stand alone drill that you can now get that allows you to screw boards down while in a standing position. From my understanding, you basically can be in a standing position, have the screws feed automatically out the bottom of the device thereby allowing you to screw down deck boards (or sub-floor for that matter) while standing up. My knees & back aren't in the best of conditions (read: old hockey injuries from being a goalie) and something like this would not only speed up jobs for me but let me walk a little more upright at quitting time. If anyone knows or has heard of this and where I might be able to get one, I would really appreciate it. Also, if it does come as both an attachment and as a stand-alone tool and anyone has one or has used one and can recommend which is better, that would be a great help.