Found a site with several nice Halo models, including a Ghost, Wraith, and a couple of ships. The Ghost and Wraith I have never seen a model of before, so that's pretty cool. http://www.darkride.h1.ru/ is the site. to get to the models, click on Paper Models at the top. Also, the site is Russian, so I highly recommend using this: http://translate.google.com/translate?hl=en&sl=auto&tl=en&u=http://www.darkride.h1.ru/
Edit:The site has a header that's kind of NSFW.
Edit:The site has a header that's kind of NSFW.