LogMeIn works great on the Mac, just as good as it does on the PC and for a single home user, it's free and you don't have to mess with your router/firewall settings to get it to work. As long as it has port 443 (https/ssl) outbound, which 99.9% of the home routers (linksys, etc) have, you are good to go!

And you can reach it from a remote PC or Mac, too, and there is a pay client for the iPad and iPhone.