In about a month, I'm going to be doing my best to burn off fat for the summer. Anyone have any good exercises other than just run? 

http://www.youtube.com/watch?v=jPSVpo4mzNI

It won't do much for getting bigger, but when it comes to burning fat, I'm a HUGE fan of hardcore circuit training. No rest between exercises and only one minute between each of four cycles... I'm sweating my tail off.