Frankly, I'd just go custom at the local mechanic. They can mate a decent cat (which you can specify which one if need be) and a muffler of your choice and sure, it'll very likely be MIG-welded and not as shiny, but like Scarab said, it's pipe. The pretty bit, the muffler, you can go ahead and choose yourself, along with choosing the noise and tone.
Case in point, my 3" turboback cost me $480. That's for a flex section, a high flow cat, a Magnaflow exhaust with hidden tips (there's me saving $20, hehe), and piping.
Buying brand parts for a turboback would have been $800 at the cheapest, plus installation (I am not going to install something like that myself, I know my limits). The only difference is aesthetics -- performance-wise, exactly the same.