I'm thinking about getting a semi that can be used for HD and Trap/Skeet. Are there any multi barrel "combos" semi's that's reasonably priced (under $800)? If not, any suggestions on a good "value" semi with ~28" barrel?

You can find used like-new Remington 1100's in 12 gauge out there for $500-600. Get a 30-32" barrel with a raised rib for trap or get a shorter barrel 26"-28" for skeet (i.e, buy whichever barrel doesn't come with the gun you purchase). Either can be purchased for $100-$200. Buy a set of Remington chokes. They will fit in either barrel and give you maximum flexibility.

I have a Rem 1100 Classic Trap in 12 that I bought new and a Lightweight Magnum in 20gauge from the late 70's. Both are great guns and are good looking and well built.

I don't have experience with Mossberg autoloaders, but in my opinion Mossberg makes guns that work well but are rough around the edges in fit and finish. YMMV.

No first hand experience, but the Mossberg 930 Field/Security combo (#85325) falls WELL within the $800 price range (they usually sell for under $550).

http://www.mossberg.com/products/default.asp?id=32&section=products (scroll thru till you find the field/security model) - comes with an 18.5" barrel and a 28" barrel

No first hand experience, but the Mossberg 930 Field/Security combo (#85325) falls WELL within the $800 price range (they usually sell for under $550).

http://www.mossberg.com/products/default.asp?id=32&section=products (scroll thru till you find the field/security model) - comes with an 18.5" barrel and a 28" barrel

 

I have this one. Great gun. Barrels are a breeze to change.

If you want a single gun then the Rem 1100 is a good choice. I use mine for Trap and Sporting Clays all the time. When I bought it I was given a 30" Trap barrel and a 28" Skeet barrel. Takes a few seconds to swap them. No removeable chokes on this one.

 

I actually prefer the Rem 870 for a HD gun. It will fire anything you put in it and will never give you problems with light loads. Also works great for Trap & Sporting Clays shooting!

Beretta 3901 American for less then $600.

i have a remington 1100. I have no complaints. easy to use. comfortable i like it alot. But like others said i would go with a pump mossberg 500 or a rem 870 for hd gun. Just more reliable than a semi.

I guess I was thinking of a semi with a longer barrel and different chokes more for skeet/trap over HD. I already have a Benelli Supernova Tactical for HD, but it's not as good for clays as it has a fixed choke and an 18.5" barrel. If I can get a semi with multiple barrels to also use it for HD, I may sell the Benelli as the wife is giving me grief on more gun purchases. Besides, I still have my M&P40 for HD.

My wife gave-up on my gun purchases. Besides, she shoots most of them too! She hasn't tried my new Browning yet, she really loves her 870! Good for me, I can't afford a 2nd Browning either.

 

We have shot doubles with her 870. It isn't as easy as my 1100 or my O/U, but it is a challenege to hit the first target and pump the gun, while maintaining your sights on the second target. Makes you feel like you are really doing something when you can hit them both!

Thanks for all the suggestions. I caved in and got myself a Benelli M2...it was just calling my name. A bit more than I wanted to spend but I figured I'd have it for a good long time, so why not get something good.