Just figured I'd point out to be careful about copyrights and legal ramifications when doing this, especially if it's for a commercial use (board shop).
Whoever you get images from, be sure that THEY have the right to provide them to you, and if it's depicting a certain person, be sure you have a model release from them.
If you don't find what you're looking for, I have an archive of about 75,000 wakeboard images from the past five years, to pick from... I'd be happy to discuss licensing possibilities.
isler photo inc. www.islerphoto.com