Speaking from many years experience on both sides of the interview table,
the first thought that runs through the interviewer's mind is "can I work
with this person", while the interviewee should be thinking "can I work
with these people in this atmosphere".  Normally this happens within the
first 5 minutes of any interview.

To add to Jan's list of typical questions:  what do you consider your
best quality?  your worst fault?  And if possible, always have examples to
back up what you are saying.
Arlieda Ries
Physical Sciences Librarian
Brill Science Library