OK, I'll share how I voted....
18 or older to purchase - YES - Anyone below 18 is still under the guardianship of their parents, who are responsible for the child's actions. Parents should certainly have the final say in whether or not their own child is mature enough to handle a firearm. If little Billy wants a 10/22, dad can buy it for him, and take him out to teach him how it works. Its about parents' rights.
Parental Consent for those under 18 for usage, not purchase - YES - An adult should own the firearm, and be responsible/liable for its use, not a child. I'm all for dads taking their kids out hunting, but the kid doesn't need his name on the paperwork for this to happen.
Backround Checks ie: No violent felons or Mentalally Handicapped - YES - A car dealer can't sell a new Caddy to someone who's had their license revoked...and a gun dealer can't sell a new Sig to Jimmy, the bank robber. Sounds reasonable to me... and its the system we already have.
No firearms in courts or seats of government - YES, with reservations - Banning firearms in seats of government bothers me... but I do see a need for my local sheriff to secure a courtroom, especially during a criminal trial. While I am torn in two directions on this one, I voted YES, if only because it resembles the current limitations in my neck of the woods.
No firearms in "sterile" enviroments ie: Airplanes, prisons - YES - I don't think anyone needs to introduce a firearm into the prison population. The guards at these facilities have a great responsibility in keeping contraband out of the hands of the desperate individuals they are keeping there. Sorry, a gun going unaccounted for just isn't worth the risk... don't like it? Then don't visit cousin Jimmy, the former bank robber. As for airplanes... Even if the TSA ceased to exist, the airlines themselves woould likely ban firearms on their planes. It is the airlines' privately owned aircraft, so they get to set the rules. I'm in favor of arming pilots, however.
No WMDs ie: nuclear, bio, chemical etc. - YES - I don't want to see the Negligent Discharge that levels Manhattan! Nor do I want to see Billy-Bob take out half of Louisianna with Bubonic plague when the booby trap he set for burglars works better than he could have ever suspected.
Must be US citizen or have green card - YES - If you are not a US citizen, or have a green card you must be an illegal alien, or a temporary visitor. In the case of illegal aliens, they are... well... illegal. I also don't envision vacationing European families picking up a nice Glock for their trip to Disney World, so there's really no need to make provisions for it.
Remedy to restore rights of mentally handicapped & violent felons - NO - Why on Earth would we want to restore the rights of a violent felon? Sorry, I don't believe that Chester, the convicted molester, should ever be trusted again, even if he has found religion and started volunteering at the local daycare. I don't have any sympathy for convicted felons.
Private homes/business may restrict carry - YES - My home or business, my rules! My rights as a private property owner are to decide who gets to enter my property, and to an extent, what they bring with them.
To sum it up... Firearms are owned by adults, who are responsible for their kids using them. Don't bring your gun to a prison full of pickpockets. We don't need to make it easy for felons to buy firearms through legal channels. Billy-Bob can't have a thermo-nuclear warhead in his bedroom. No guns for illegal aliens (or jobs, or drivers licenses, or welfare checks). Once a felon, always a felon. Its my house, I get to say whether or not you can be armed... Don't like it? Don't visit.