What is the best Microsoft of vendor package to help with the below task please?
Single Domain, Single Forest, Single Site
Current - 1 x Exchange 2003, 2 x Server 2003 Domain Controllers' (Approx 500 mailboxes)
Objective - 5 x Exchange 2010 (2 x MB, 2 x CAS) farm, 2 x Windows Server 2012
I have looked at Quest Migration Management Tools but that is best suited for Cross-Forest/Domain migrations
Ideally need Microsoft Toolset really