obvious ones but;
never say anything bad about the company your working for
praise the ppl you work with
ask questions at the end when they ask you if you have any (at least one)
dont try to get in the interviewers panties,
think before you answer questions, what are they trying to get from you?
be polite to everyone you meet ther not just the interviewer, I have seen many people rejected after a perfect interview for being rude to the secretary.
Try to relax,
Any more? I too have big interviewm, at the end of the month, (arrrrgh) Tips please cookster!
Thanks in advance
Matt