A friend was asking about setting up backups, and I don't want to tell him "just use rsync". I'd like a tool with a simple GUI, and automated backups. Advanced features aren't really necessary. What are some good choices?
Edit: A lot of people seem to be recommending Dropbox-esque tools. While Dropbox is great, it isn't really the sort of thing he's looking for. He wants to be able to restore his system if something goes horribly wrong. Dropbox is better for keeping track of documents--I'm looking for something closer to Apple's Time Machine. Also, he's on dial-up, so online solutions are a no-go.