Nice reporting tool http://www.virtu-al.net/2012/03/22/vcheck-exchange-updated/      

During the Beta phase of the Exchange Client Network Bandwidth Calculator (EXNBC) I hope to release an update every 4-6 weeks. These updates are to provide new features based on feedback and potentially to fix things in the calculator. For this BETA 2 release, I have been working with our teams in the Office 365 [...]

Anyone who regularly uses Log Parser 2.2 knows just how useful and powerful it can be for obtaining valuable information from IIS (Internet Information Server) and other logs. In addition, adding the power of SQL allows explicit searching of gigabytes of logs returning only the data that is needed while filtering out the noise. The [...]

http://www.msexchange.org/articles_tutorials/exchange-server-2010/high-availability-recovery/designing-site-resilient-exchange-2010-solution-part1.html