Exchange 2007 Storage Calculator
I realise I have just posted the mother of all blog posts about storage sizing, but I thought I would post this separately for ease of finding it!
This is a really useful post onthe Exchange Team blog all about their new storage calculator for Exchange 2007.
Check it out here:
http://msexchangeteam.com/archive/2007/01/15/432207.aspx
Cheers
Nathan