We tried to invite more people. It was difficult to get in contact with taylweaver's other friends when we couldn't ask her outright for their contact info. She said I should have stolen her cell phone and taken the numbers from there. I'll take that as permission for next time...
If you get enough people together, even a digital camera isn't very expensive per person. If you'd like to contribute, just let me know - as taylweaver said, you can still add yourself to the list of gift givers.