I love my Bern Macon EPS. It's a thin, lightweight, durable hard shell helmet with better ventilation than any other "skate" style helmet. You can toss it around a bit with the hard plastic shell and not worry about it cracking, etc. As a boarder, you'll probably like the fit & style. I got mine for around $35.

http://www.aggressivemall.com/v/vspf...t-Macon-2T.jpg