Where in the world are you? There's lots of places to buy intakes, or you can just go online. It depends on what you're looking for and how much you're willing to spend. If you happen to be in Southern California... San Diego in particular, I can point you out to specific shops and they can provide pretty much anything you want.
OR you can email SR20DEvelopmenT and have them make you a super custom CAI made out of a JWT POP. Trippy huh? But I found out recently that they can do that. How good is it? I really don't know, but since I was unable to get a HS CAI from JWT, I'll probably go over to see how it is....that is, once I get my car out of the shop. :-\