I'm in the market for a shotgun, mainly for home protection. I'm looking for an 18" barrell shotgun. With those that have shotguns which do you like and why? what kind of shells would you recommend for mainly home protection? I've looked on the Remington site and Winchester site, are the Tatical shotguns an option I can get, or is it only avaliable for law enforcement?

I like the specs on this winchester:
http://www.winchesterguns.com/prodin...d=252&cat=019C