Samsung SCX-4100 under Mac OSX- Snow Leopard
Posting this here, to hopefully save any other SCX-4100 users some unnecessary pain, after upgrading to 10.6 my printer was recognized but was unable to print. Of Course Samsung no longer offers drivers for the SCX-4100, so after a LOT of trial and error, I discovered that the drivers for the SCX-4500 Universal Print driver work well enough that you can print. Nothing is ever easy peasy anymore.
Great stuff. Worked a treat for me! Note that I tried the SCX-4300 driver, assuming that would be closest but it just printed blank pages.