I think people are going to want a bit more refined of a question... a bit more specific. If you're actually getting ready to put a turbo on your d, you'd better be ready to be a little more proactive in your research methods, or you're never going to finish.
^ there is a link to a good place for you to start. It walks you through all the basic components of a turbo system, and familiarizes you with the common sources of these parts for building a system piece by piece. Unless you've found a bolt on kit that comes with "everything", in which case... you're sittin' pretty with about 4000-5000 bucks, because none of the cheap kits online come with everything you need except for the edelbrock that I'm aware of. Good luck!