saw this on DLtv, pretty neat little program. The name is some what funny too.
But what it is, is a site that you can take an image and rasterize it, blow it up to poster size, then split it up into 8-1/2 x 11 sheets of paper to achive sed poster size, then compiles a pdf for you to print and put together like a puzzel.
http://homokaasu.org/rasterbator/
