[weedwacker]

I think one key point hasn't been brought up so far. You really should have some sort of a cap on how much any one person can donate. Not like you can't use the money to offset the costs of keeping the community up and running but when you allow large donations they tend to come with assumption they can run your community. I've personally had this problem when I ran irc networks and decided to accept donations to offset operational costs. The cost of the donation in that case is not worth the headache afterwards from the donor and the potential harm it can cause a site from an integrity standpoint.