I just saw this post about a UI for synergy on Mac OS X. I have been using synergy to share the keyboard and mouse on my Windows and Linux workstations at work. Previously, there has only been a command line version available on Mac OS X. Now SynergyKM provides a UI for configuration of Synergy.
I see that it includes a version of the synergy built in. I wonder if you want to use a different version, if it would be possible to put one in your search path.