For a header that's not horribly overpriced but also isn't junk I would look at Megan Racing. You can go to their website or you can purchase them from lots of other places (E-Bay, etc.). I've had a Megan header on my Integra for about 3 years now and no problems with it so far.
Megan makes exhaust systems as well, so you could look into that. You can also just take your car to an exhaust shop and have them build something for you. For your application, I'd probably go with 2.25" piping, a straight-through resonator, and a straight-through muffler of some kind...