Thanks for the fast reponse everyone.
The BES VM is now set up with 3GB or RAM and 2 CPUs, but originally it was at 1GB RAM and 1 CPU. The extra resources helped a bit, but both CPUs are still being utilized 100% most of the time. It drops down to 40% or so maybe every 10 minutes.
One other question on SQL for BES, in regards to which version. Does it matter if we run SQL 2000 or SQL 2005? Is the version dictated by the BES or other factors?