The Tristar Viper G2 Auto can be had in 28ga and 410 for a reasonable price and are very good shotguns.
I had one in 28ga and only traded it on a double 28ga (no it's not for sale or at least not for a reasonable price, lol). I also have a Viper G2 20ga..
I also bought a Yildiz 410 double from Academy and love it. Comes with the choke tubes as do the Auto 28ga and 410. Rossi also makes a nice 410 double but with fixed chokes. My 28ga double is a Rossi and the only one I've ever seen.