This is some of the best documentation I've seen in providing a comprehensive analysis for a major new virus.  The link below from CAIDA is chockful of charts, graphs, and facts.  I'm glad that actual damages for the payload triggered on February 3rd were significantly less than predicted.  

CAIDA -- The Nyxem Email Virus: Analysis and Inferences
http://www.caida.org/analysis/security/blackworm/