If you're interested in the beretta 92, I'd recommend the Taurus Pt99. It's a few hundred dollars less and has, what I believe to be, a superior safety/decocker design. I have approximately 500 rounds through mine with flawless performance.
I just went through this same dilemma over which 1911. I wanted something with some historical integrity, as the 1911 is a historical gun. However, I also wanted some of the more modern features that technology provides. I looked at and shot Kimbers, Colts, Wilson Combats, etc. All very nice...
A buddy of mi e is an AR junkie and very knowledgeable on most of the pros and cons of various models. He ranks the M&P as high as many of the more expensive options. I think you will be very happy with it. Hope the weather doesn't delay your shipment too badly.
I've not heard of someone wanting both barrels to fire simultaneously. Usually, that's a sign of trigger problem. However, I concur, a double trigger, pulled at the same time with two fingers would reasonably accomplish both barrels firing nearly at the same time.
Congratulations. I always thought that the Judge series is the perfect home defense weapon. The thought of alternating between shotgun shells and big caliber bullets would make a mess of someone that shouldn't be in your house...
Generally everyone is ready to jump on the "Taurus sucks" bandwagon. I've been happy with mine but can't decide if that's due to luck or improved quality control at Taurus. I hope it's the latter because they offer a lot of gun for the money in every caliber. Good luck and have fun.
Everything I have read about the Remington 1911 has been very favorable. I considered buying it but eventually decided I wanted more features. The R1911 is essentially a GI model with somewhat better sights. I've heard conflicting reports on where the pieces and parts are made.
Legitimate concern. I admire someone that pursues what they like regardless of popularity...as long as the pursuit isn't because it's unpopular. It's really easy to get caught up in what the big bow stores sell.
If it has to be new, at around $500, the Rock Island is probably your best bet. I'd be tempted to keep your eyes open for a used Kimber or Springfield.
I think I would start with some 60 grit, move to 120 and work up to 220. For that matter you could completely strip the fore end too and stain it slightly darker. I think a darker colored stain would look "richer" and hide future dings better. Finish it with a few coats of polyurethane, sanding...
I should have added, good pricing if you want to be in Rock River or Stag parts. I acquired a RRA upper and wanted to stay in the same brand throughout. Have you found RRA parts cheaper somewhere else?