I actually tried out Hamachi; and I'll be the first to admit it does exactly what I need.
For those of you who don't know, Hamachi is a zero-conf VPN tool. If you've got a computer at home, a computer at work, and you need to make them talk... a few clicks and you have a VPN.
It does it well, too.
Install, easy; connection, easy. Add a few entries to my HOSTS file, and I'm hooked right back up to work. Too easy.
The only qualm I have now is how to reconcile this with consuming too much energy! Perhaps I can offset it by taking the bus more.