Here are some useful tips for the BMI interview.
1) Type "Competancy Based Interviews" into Google and answer all of the questions you can find. This will help...trust me.
2) Learn your last complex type
3) Read "Ace The Technical Pilot Interview" by Gary Bristow about 4 times cover to cover
4) Gen up on the company. Flybmi(duh!!) and wikipedia are very good sources of info
5) Put your right foot out
6) Put your right foot in
7) Do the hokey pokey and turn around
Enjoy