SyncToy is a free download from MS. It does only one thing: Synchronizing folders, and it does it pretty well.
Simply install it into your PC, setup a folder on your hdd you want to sync with a folder on your z and you are done.
You can also run it in a non-interactive mode, though the UI will still run, showing you what is done.
You do that by running synctoy.exe -r "my label" to run a synchronization pair labelled "my label" or synctoy.exe -r to run all sync pairs that are configured to run.
I currently have it setup and I must say I am using my Z a lot more now. With notepad++ on my notebooks and zedit on my Z, my memo/notes are easily kept in sync with a simply USB cable.
I'm in Sync Nirvana ...