I'd suggest some reading in the brisket forum, there's lots of details, as well, sounds like you haven't read Brisket 101.
A lot of the basics are in 101.
All my 101's are off the main forum page (under community) or can be found here:
http://www.cookshack.com/smokin-okies-guidesThen if you have more questions, just pop back in this thread or the other, no need to start a new one for each set. That way it will help others who likely have similar questions.
Will get you there.