Originally posted by: Flyback
The thing about behavioral interviews is that most of the behavioral questions are known ahead of time (even ones specific to YOUR field). If anything the technical part should be feared (because they can put you on the spot in front of a panel of more knowledgeable people so that data structure or sorting algorithm you memorized just for the test might come back to haunt you).
You can find them circulating online or you may have received copies from your co-op adviser at college. There are about 25-50 questions that usually most questions fall under. Occasionally you will get a curve ball, but I think preparing for behavioral interviews is so damn easy because most HR workers are lazy as hell and don't deviate from it ("Tell me a time when ...").
If you have a weekend to prepare for a behavioral interview it should go well to great.