@rubberbandito - if you do decide to get a rack for your Nova, I recommend Planet Bikes' Versarack:
http://ecom1.planetbike.com/4004.html
The Dahon Traveller Rack looks nice but I don't think it is compatible with the Downtubes. I know for a fact that the Versarack will fit since my friend has it on his Downtube. If you look at the close up pic of the Versarack, you'll see it has a lot of adjustability.