SNMP/CIM monitoring of RHEV hypervisors?

We just enabled the SNMP agent on our RHEV-H hypervisors, and pointed cacti at it. What we got out wasn't quite optimal.. some simple cpu/load graphs, and a gadzillion "anonymous" disk graphs :-)

Are anybody using any RHEV-M external tools to monitor the RHEV environment? I know they support both SNMP and CIM, but have no experience with CIM. Anybody have pointers to what can be done trough CIM?