A Mossberg Tactical Cruiser might also be a good choice.
It's been a few years since I bought one, but Mossberg
used to offer a combo-package with an extra barrel. That way, you could have a shortie (for greeting people) and still have a long barrel to use for hunting with the same receiver.
I think that for most people (that is, those who are basically going to keep a gun in the closet and not go out much to shoot or hunt), 12 gauge is too much. I think the numbers show that 20 gauge works just fine (delivered KE levels waaaay beyond most handgun ammo), has a lot less recoil, and is still just as intimidating when you do the clackety-clack thing. You still have tons of choices of loadings available pretty much everywhere, and if there is a potential female user in your home they will be much more likely to pick up and use the smaller shotshell.
The shot clouds from both 12 and 20 gauge will pretty much get broken up and significantly slowed by the first sheetrock wall they hit, but will still be effective on an exposed target. Very few people will be able to look at the muzzle diam from 10 feet away and be able to tell what gauge you're holding.
All the extra crap, the external cartridge holders, slings, laser sights (for a SHOTGUN?!), and all the rest are just junk. Leave that stuff for hollywood and the movies. If you ever need a weapon, you will need it on the spot, that instant, and you probably won't have time to show off to anyone how many attachments you have.
Having said all that, if you are going to have one of these things, you had better make up your mind ahead of time how you might use it. For me, if anyone is crazy/stupid/drugged-up/violent enough to attempt to break into my home, they have automatically demonstrated the same willingness to do harm to my family. I would have no hesitation...I wouldn't like it, but my family comes first.
Proper storage, etc, is important. Improper display is an absolute no-no; one of your friends will (however innocently) always manage to blurt to someone else that you have a weapon, and be overheard by someone else, and the only thing you accomplish by showing off your toy is to make yourself a burglary target for someone who wants to make a quick $5 at the pawnshop.
Trigger locks are another absolute no-no. If you have a firearm for protection, you don't have the luxury of "please Mr Intruder, let me look for my keys." For the same reason, a defense weapon is always stored loaded. You must teach your household members safe gun-handling (which includes even a totally-unloaded weapon) and that the thing is NOT a toy, under any circumstances. If you or your family can't handle the responsibility, then do not have a weapon in your home and wait on the police.