Even if you are certain that this job is the one for you,
ask for some time to make an informed decision. If salary
has not been brought up, right now might be the
time to do it.
This may be a "buy" sign. The interviewer is interested in
the possibility of hiring you. Try not to sound overanxious
or desperate.
You should always bring a list of references on the same type
of paper as your resume and cover letter to the interview
with you. Though you do not need to identify them as such,
you should have personal, professional and educational
references for the interviewer to choose from.
A well-prepared interviewee ALWAYS has questions. Avoid
bringing up salary or benefits unless the interviewer starts
discussing them first.