Get large Cloudmade maps like BigMap

Hello,

Is there a way to easily export an image (.png file for example) with a style edited in Cloudmade, but for an area (number of pixels) larger of what my screen can display with cloudmade. A bit like what Bigmap does (http://openstreetmap.gryph.de/bigmap.cgi), but with a customised style.

An idea?