Microsoft is working very hard these days and is has released a whole bunch of updated and new management packs this month. Here is an overview: Server 2008 Network Load Balancing 10/22/2009 (6.0.6726.0) Windows Server 2008 Network Load Balancing for System Center Operations Manager 2007 The Windows Server 2008 Network Load Balancing (NLB) Management Pack provides discoveries, monitors, alerts, and warnings to help the operator understand the state of NLB clusters and NLB servers running Windows...(read more)

Read the complete post at http://scug.be/blogs/scom/archive/2009/10/23/new-management-packs-for-opsmgr.aspx