Tim Sandefur has a series of posts on the 14th Amendment's Privileges or Immunities Clause & incorporation of the Second Amendment–the issue on which cert. was granted in the McDonald case:
McDonald v. Chicago: revolution or restoration?
McDonald v. Chicago: revolution or restoration? (Part 2)
McDonald v. Chicago: revolution or restoration? (part 3)
McDonald v. Chicago: revolution or restoration? (Part 4)
McDonald v. Chicago: revolution or restoration? (Part 5)
McDonald v. Chicago: revolution or restoration? (Part 6)
McDonald v. Chicago: revolution or restoration? (part 7)
McDonald v. Chicago: revolution or restoration? (final part)