volunteer help design template nonprofit project

Hello A2Drupal!
I currently help the UM student chapter of Habitat for Humanity by providing support for their website (http://umhabitat.org). I set up a drupal cms for the group, and the site functions well for their purposes. Unfortunately, I have very little artistic ability, and even less graphic design sense. Therefore, the site uses the standard Drupal theme. Would anyone in this group know a design firm (or individual) who may be willing to donate their time to develop a theme for the site? Please feel free to email me at eric.roeder@gmail.com. Thanks for your help!