pro-bono

I'm helping with the website for the host committee for AA's 75th anniversary in San Antonio in 2010. The event will require around 5000 volunteers to accommodate the 60,000 recovering drunks hitting the Alamo City next July. The organizers would like for volunteers to be able to sign up for time slots for different jobs.
For example, 60 volunteers are needed for the Tuesday 1pm-3pm Hotel Lobby Greeters slot. Once 60 volunteers sign up, that slot should not be available any more, unless someone drops it.

I previously was working on an ecommerce site which had much potential for growth. 15 hours into getting the right modules, doing some work in taxonomy and focusing on the functionality of the site...the project got pulled from my docket. So now, I have no idea what kind of thing I can do to continue enriching my Drupal skills. Sadly, I learn best by doing.

Any chance that I might find someone here looking for someone willing to work for low pay or pro-bono, since it is the experience I seek most. If that is not what this group is for, than I apologize.

Skills I possess: