Mac OS X printing is based on CUPS, a Unix-based printing system. Therefore, all of the CUPS settings can be edited via text files. In addition, if you go into System Preferences and then select Sharing, and under Services, enable "Printer Sharing", you should be able to gain access to the CUPS web-based control panel at http://localhost:631

More information about CUPS (including documentation) can be found at: http://www.cups.org/