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.
I'm under OS 10.9 by now, and I use ChronoSync to sync my computers. I wrote an AppleScript that mounts one computer from the other, opens a ChronoSync file, and then unmounts the volume again when syncing is complete. I saved this AppleScript as an app and put it in my Dock. So now all I have to do is plug in the USB cable into my laptop, have both computers running, and click the app symbol in the Dock.
The only problem I have is with ChronoSync sometimes showing an error on .DS_Store files. I'm unable to exclude this file type or file name, although theoretically ChronoSync offers the option to do this. It's not a real problem, though, as I told ChronoSync not to stop syncing on errors, and as yet I haven't had any problems with those files.
I may look into iBackup, soon.