Synergy is the best at what it does. It has the best looking floater, the cool animation as it draws, and the nice menu bar control buttons. However, an earlier version crashed my Finder repeatedly and caused so much havoc that it had to be trashed. Unfortunately, this new 'fixed' version still crashes, leaving my perfectly stable OS X 10.3.5 system with junk in the menu bar and a floater which won't go away. I'll try again next time. I do like Synergy, and can't wait to use it full time, but I don't want it on my system at this stage. Give it a try, but keep an eye on it.