I just found this on the new CodeGallery on GotDotNet (via Brad Wilson's blog). The paper provides for an interesting reading and discusses some of the issues I was going to cover regarding Architecture Evaluation (I will probably blog about them anyway, but that's just because I like to write :) ).

Also note that the document is labeled "Microsoft Confidential." on the first page - I am guessing that the document status changed and they forgot to remove this notice - but it might also mean the document will not be there for long...