Kristopher Bash has a great blog over here and his newest project was an advanced SNMP monitoring pack for SCOM R2 monitoring Cisco devices. It is fun to follow the development proces through a number of his blog postings you can find on his blog.
Here is the link to the latest Cisco monitoring MP on his site:
http://operatingquadrant.com/2009/09/14/scom-advanced-snmp-monitoring-part-iii-the-completed-cisco-management-pack/.
