BAD RAP is a pit bull rescue with some of the finest, most knowledgeable dog people ever working for them. Here's a blog entry from them about introducing a new dog into the household. The dog in this article was a spicy little pit with a history of being snippy with other dogs, and she was able to transition in seamlessly.

http://badrap-blog.blogspot.com/2009...or-dogdog.html

Also, under this link:

http://badrapbarncrew.blogspot.com/p...-to-links.html

Is a PDF file about bringing home a new dog. It's well-written, detailed, and just wonderful!

Good luck with your next pupper!