Are you good with a grinder, torch and creativity?
I recently taught myself to use oxy-acetylene to weld. From what I gather in my expirence...it's a WAY stronger, less porous weld and it's not that hard to do when you get good.
I am going to attack my turbo setup next weekend once I get my hands on a flange gasket. My collector pipes on my Y pipe are SHOT and I need to get rid of that ticking sound as well as exhaust fumes in the cab when sitting at red lights.
If you don't want to tackle it yourself, I would take it to a well trusted exhaust shop. Make sure they are reputable though....I have seen some pretty scary cold welds come from places like Midas, Speedy, etc.
I wish I lived closer to some of you guys....I LOVE doing stuff like this.