Originally Posted by hdawg
As of this posting SQL 2008 is not officially supported with BES. That said, it does work.
If you've got nothing else running on the BES other than SQL & BES (and BAS), I'd allocate 3GB of RAM, and at least 2GHz of processor to start.
So you have tested BES 5.0 on Server 2008 and SQL 2008 (Express or Enterprise) and it works just fine?