As for the Toomey-Manchin-Schumer universal registry bill, don't believe the press' efforts to sugar-coat it. If you have ever had an "Internet ... posting" on (or related to) your gun, you can sell it only by going to a dealer and filling out a 4473 and getting the government's approval. Only a cave man would be exempt.
http://www.capwiz.com/gunowners/issues/alert/?alertid=62586391