I'm working on two Macs, an iMac and a MacBook, both under OS X 10.8.5. There are several GB of data that I need on both computers. I have used Dropbox and ownCloud, but I don't see why I need to transfer the files over the internet when I have a cable that connects both computers directly over my local network.
What I want is a solution that automatically syncs selected folders between these two computers, similar to a Cloud service, but directly, without the Cloud.
I have no idea how to run rsync and don't want to learn it, so the solutions shouldn't be more complicated than installing Dropbox. It would be nice if the solution was open source and free, but that is not a must.