If the original Bill of Rights was organized by priority, it's somewhat amusing that the original Second Amendment dealt with, umm, compensation for Senators and Representatives -- ahead of freedom of speech, religion, and the right to bear arms.
Article the second [27th Amendment - Ratified 1992]
No law, varying the compensation for the services of the Senators and Representatives, shall take effect, until an election of Representatives shall have intervened.
http://usgovinfo.about.com/blfirstbor.htm