EDIT: The poster actually comes in December 2007 issue, not November 2007.
You might be interested in this:
December 2007 issue of TechNet Magazine comes with a 30" x 20.5" poster called Exchange Server 2007 Component Architecture. Here is a preview (click on the thumbnail to open larger version):
The above is of course still too small to use. We have blogged about the downloadable version too, but unless you have some serious printing capabilities, you might not be able to print this properly in high quality.
Well, the good news is that - if you head over to TechNet Magazine site, you can order the December 2007 issue as a back issue order and get the actual glossy printout with it. It'll serve two purposes nicely:
help you with understanding of Exchange 2007 Component Architecture and serve as a quick reminder or a learning tool
look really impressive on your wall, and boost your Exchange geek-factor by a good amount