This article gives a good history of the Dahon company and how they came to be in the folding bike business. There are also clickable images that link to Amazon for many of the Dahon models. There are good reviews on Amazon and I endend up getting a boardwalk after checking out all of the models in this article. Definately worth a look if you are looking to buy some new wheels.
http://www.newsmicks.com/2013/04/30/dahon-bikes/