I'm unsure if this is possible but worth checking. I curently run an iMac with a second display and then a PC with it's own monitor. I have all three monitors (Mac+PC) linked with the same keyboard & mouse using Synergy but I'm now looking to remove the PC from the fix and run the needed software in VirtualBox and add another iMac into the mix. So I will be running two 20" iMac Intel's on my desk.
What I was wondering, is there away to have the two iMac's linked together? So say i drag a finder window from one Mac to the other, the second Mac will just work as a second monitor. I remember reading about this but can not find the article on how to set this up.