Re: BES5 to 10 in a small environment, frustrations...
Virtualization is not $xxxx. Just buy a license of 2008R2 standard ($400), or Server 2012 standard plus CALs in the addition of a standard sbs20011.
Install one instance of 2008R2 as the hypervisor, in another guet install the sbs2011, and in another guest a second instance of server 2008R2.
The only difference for you is that you then have no SQL server (which you dont need anyway, because bes can use its own sql2009 express)
Or: buy a copy of 2008R2, virtualize the sbs2003 on the new hardware (a quick clone with disk2vhd will do), and use a second 2008R2 instance for the BES.
(I already suggested this, but, maybe it was hard to understand ?)
Last edited by nobody7290; 08-11-2013 at 03:48 PM..