Eurogamer have spotted a listing at Gamestop for Mass Effect 3's collector's edition, which comes with all sorts of goodies including an art book, a soundtrack and a comic. There's also a neat little trailer to show them off. The art book in particular looks utterly gorgeous, and I'm a sucker for a metal case, especially one with the new female Shepard design on it.
Most intriguing is the promise of a bonus character and mission, presumably similar to Zaeed in Mass Effect 2, details for that one are being kept under wraps however. Check inside for the full list of bonus material.
Included in the special edition will be:
In Game content: