You could also try 'SynergyOSX', have a look here.

.

Re all this
 

I deleted the synergyKM prefs as Calvarez suggested but I still hang so I sent pics of the config and error message of the client and host to one of the authors in the hope that I get a response concerning the missing temp files.
SynergyOSX looks ok but have you tested it.

Conclusion
 

After all this discussion and a lot of research ,I found this simple little gizmo ''Teleport'' which up to now does the trick with simplicity and was a breeze to set up.
http://www.macupdate.com/info.php/id/14042http://
I will however repost if I get an answer concerning the missing tmp files.
Also, I found this interesting article on Synergy and security.
http://www.oreillynet.com/pub/wlg/7682
Thanks

I've personnaly not been able to have SynergyKm work either... I simply configured the Synergy client on the 2 Macs and the PC I use every day, setup small startup scripts, and voila... it loads on its own when the system starts, or when I execute the script...
I have used Teleport in the past. It works nicely indeed, but sadly is Mac only, which makes Synergy's cross platform capabilities that much more apealing. The clipboard shring is nice as it tkaes out the necessity to type things over or to copy/paste them into an email or file that would then need to be dumped on the other machine.

For SynergyKM I haven't tried this but I read somewhere that there's a bug if you don't start up the host computer (not the app). before starting up the client computer. Regarding the cross platform issue, I'm sure this is a great plus in a mixed environment but my original goal was to control 2 or maybe more at work and Teleport handles that nicely as you put it.. I'm not
too sure how it handles clipboard issues because I've just started using it.
More to discover...

Yes, Synergy does not do any authentication or encryption, but you can add authentication and encryption with ssh. Synergy is slightly harder to setup, but it has more features and it has been more widely tested. I don't use a GUI client, I just manage the server and client from the command line and adjust it to my needs with the ~/.synergy/synergy.conf file without any problems.

Anyhow in the latest release of Teleport there is no encryption of transfers, although is one of the features planned by the developer for the next major release. But for now, be aware that..."The fact that there's no encryption in teleport can allow others connected to the same network as you to get the packets that go from the master computer to the slave, thus permitting them to read the things you type on the keyboard, to the controlled host. In no way it weakens the security of your Airport network. However, if your Airport network is not protected enough, others might hack into it and then read the trafic circulating, including teleport keystrokes".

.

Security is a minor issue here in my Mac only workplace since my coworkers are also friends and they rely on me for the network and we are cabled for the lan (speaking of security, there are 6 different Airport networks in this bldg alone to which we can connect at any given time).The fact of the matter is that Teleport is as easy as pie and works seemlessly. Truthfully, I started of with a dos computer and if I don't have to enter another command line for the rest of my life I'll be ecstatic.Less configuring=more time for work. Anyhow, thanks to everybody who pitched in to help.
Sincerely,