Originally posted by: Rogue9
<--- US Army trained in the use of firearms
If you have a gun range nearby, most rent guns that you can try out. The handgun I learned on is a Ruger Mk II - a .22 cal autoloader (semi-automatic pistol), and I highly recommend it for starters. .22 ammo is the cheapest (less than 2 cents/round) so you'll get more shooting for your dollar, and it's fun because of the low recoil and noise.
Definitely learn by-heart the basic gun safety rules before even touching a gun. Some people have different ways of stating the rules; here's my way.
1. All guns are always loaded.
Treat every gun as if it were loaded, until you personally have verified otherwise. Don't trust anyone else to unload a weapon. If you pick up a weapon and set it down, the next time you pick it up, you should re-verify if it is loaded.
2. Never let the muzzle cover anything you are not willing to destroy.
3. Keep your finger off the trigger until you're ready to fire.
4. Be sure of your target, and what's beyond it.
The best all-purpose gun forum I've found is
The High Road. If you have specific questions, you can go there and ask; I'm sure plenty of people would help out.