I've tried searching the forums, but came up empty-handed.
I'm looking to setup sftpd under OS X... is this available? Correct me if I'm wrong, but the included ftpd is not secure, yes? (Unsecure as in Telnet vs SSH.)
Mac OS X does indeed include sftp by default. Simply go to Sharing and enable the SSH server (also ensure that port 22 is not firewalled). This will allow connections over SFTP to the machine. Please be mindful of the security issues involved when doing this.