A show in a whole other class is that of SIGGRAPH and the 2008 event in LA looks awesome (it doesnt even look too expensive - tempting).
There is a great little preview article on CGSociety showing something of the creation of the Animation Mother imagery. Paul Hellard brings us a little look at the image and the evolving nature of the industry and SIGGRAPH itself. There is an AWESOME VIDEO preview of what is to come in the show in the article as well, but here is Meats Meyer's Animation Mother (this is the full res version):
[Meat's Meyer's Animation Mother, from the CGSociety article on SIGGRAPGH 2008]
There is a growing number of youtube vids from folk who will be exhibiting or presenting at the event as well...