Stoger offers the old 1st year production Beretta style "shorty" choke tubes in there hunting models, and finding one with them shouldn't be to hard. even without tubes, there full/mod or mod/improved will handle anything you need, the latter if you plan on shooting steel shot ever. there coach guns come standard with cyl/cyl bores. Stogers have always been reliable, solid, Italian made shotguns. there fit and finish was always a bit rough, but that's improved greatly over the past 12 or so years since Beretta took them under there wing, hence what drove there prices up. you can still find plenty of them at gun shows for between $200-$350 that would be perfect for an entry level shotgun.
Eastern Euro' companies like Ugatcha (think that's how it's spelled....) and Bakail also make some decent SxS's in the $400 and less market in 12, 20 and 28 ga. Ugatcha makes a really impressive shotgun for that money. my friend owns 2 and they point and balance like a $5000 Merkle. the electro pen engraving and cheap walnut stocks are a bit rough, and the double triggers a tad "rattely", but we're talking function not form here!
if your set on double triggers, you might want to try shouldering a few 1st with "upland" or English style stocks. they were designed before the need of a pistol grip styled stock, and are meant for better purchase of double triggers. your going to be tempted to place a finger on each of those triggers when shooting, and with your bottom 2 fingers wrapped around a pistol grip, can lead to a recoil induced double fire. while it won't hurt your shotgun, it can ring your bell, and leave you unexpectedly with an empty weapon!
make sure to practice and shoot with your trigger finger only, no matter witch stock feels better to you. it can take some time to learn, but it's not rocket science! it's also handy to remember witch barrel is your tighter choke as well. traditionally your right barrel will be choked more open then the left (voided in the case of using tubes!) and be set to the 1st trigger. naturally flushed birds or game will start off close, and get farther, but that doesn't always happen in real life or when ducks are involved! if your left handed, you might also prefer to have the inside (left) barrel house your 1st shot, and work your triggers from back to front.
