I don’t usually do this but I think I can get away with this as I consider it relevant to a lot of people reading this site. Even if they are hosting from home like I do. There is a contest going on at MacMiniColo (the hosting company that specialises in hosting mac mini’s). They will give away a year free hosting, including the mini and a Macbook Air for the best idea that you have in using a Mac server. Check the site for details.
If you are entering let me know. I’m not entering as I guess my use is a bit too obvious! Good luck with your entry!!!