Not new, but still a great thing for all those who deal with Exchange Server and HP hardware. HP has a tool for the hardware configuration of Exchange 2010 on HP servers for free download.
The "HP Sizer for Exchange Server 2010" can be downloaded here:
http://h71019.www7.hp.com/ActiveAnswers/us/en/sizers/microsoft-exchange-server-2010.html
I think it's a great tool that is easy to use.
