Auto-sync folder between to Macs

[DELETEMYACCOUNTTTTTTTT]

I've got a C2D MB and a Sore Solo Mini. I use the MB as my primary machine, with all my media on it. I'm using the Mac Mini as a media center box, complete with TV tuner. Front Row works best with local media, so I copy all my stuff over to the Mini, but this is pretty tedious when I update my iTunes Library/iPhoto Library/etc., since I either have to copy over all the data to ensure its there, or weed out the files/Library files that were changed.

Is there some app to automatically sync a specified folder(s) from one Mac to another, copying only changed/new files and deleting files that have been removed? Free is best, but if there's only a shareware method, then I can manage it.

[FOOOD]

Not free but I've used ChronoSync for ages.

I sync my Macs with it, & also have it set to automatically backup my whole user home folder to an external firewire drive every night (only updates new files, doesn't have to copy over all the files every time).

Well worth the money :)

[ctomer]

You want to use rsync. Comes installed by default and allows you to synchronise files between 2 machines.

I imagine you'd be able to do something like the following:

1. Create a script that runs rsync to do you synchronisation

2. Edit your crontab file:

$ crontab -e

3. Add something like

0 * * * *		username  /path/to/my/rysnc/script 2&>1 /dev/null

This will run your script every hour.