What is the best free FTP server for Mac OS X Server? I'm running Mac OS X Snow Leopard server on a mac mini and was wondering what the best free FTP server was? I hear okay things about pure-ftpd but I'd like something with an easy to manage UI as well etc...
Unless you’re planning on running an extremely heavy loaded FTP server (which the mini won’t be able to handle anyway) the built in FTP Server should be enough. 

Pure-ftpd is a classic in the Unix world and I’m sure you can of course make that run under OS X, but it doesn’t have a “UI”, it’s all command line. (But very easy to configure anyway).