Look around.
Read - here, the Parker, Fox and LC forums (I'm probably forgetting someone - sorry) and elsewhere. Since I started writing this, I see you mentioned a 16 - go to 16ga.com and hang out there, too.
Go to gun stores and pick up and handle as many guns as you can. Figure out what feels right in your hands - that will help guide you to buy what's right for you.
Follow Gunbroker, Auction Arms, Guns Int'l and GunsAmerica - look at all the ads. Do not rush to buy.
Learn to discern potential problem areas. The folks on this site are some of the best at filling one in on where problems can occur and how to suss them out.
Learn as much as you can before opening your wallet. It's really a lot of fun.

Last edited by Dave in Maine; 05/19/15 05:19 PM.

fiery, dependable, occasionally transcendent