Another dumb question - I searched and searched but couldn't find the answer. Can I use my orbital palm sander (like this: http://www.mytoolstore.com/dewalt/dew06-08.html) to do the scuffing before primer? After primer I won't as it is electric and that's not a good idea wet sanding.

First step complete... spent like $20 at the quarter wash knocking off the loose paint. First bath that truck has had in YEARS!

Thanks for all the help!