But, it turned out that out the drill plus the square-drive bit were
longer than the 11.5" space between the long slats. I probably have a
shorter bit somewhere, but the geometry seems to demand either a long
bit or a drill with a very small diameter chuck.
Greg Guarino

I solved a similar problem a few years ago by buying this right-angle drill:
http://www.sears.com/shc/s/p_10153_12605_00911576000P
The drill has good torque and it's not very heavy -- but the battery life sucks.
Doug Miller

And I picked up this to solve my screw issues...
http://www.amazon.com/Milwaukee-48-3...gle+attachment
`Casper