Thanks guys!
I made the GPD file and cards, and had the HAHAHA Times printed up at Kinkos.
jvasilatos, the new issue of the Gotham Times was a prize for sending in pics to ibelieveinharveydent.com, same as the first editions were prizes for sending in Joker pics. You can't get them in comic shops but you might be able to pick one up on eBay.
I'm looking to trade for a Joker goon mask so I'm going to hold off on sharing all the files for now but if anyone can tell me where to find playing card stock paper (or something similiar) that I can print the cards out on a laser printer I'll happily share those files.