Saw this past by on the MSSMS list today and thought it was good info. Thanks to Brandon Linton for contributing it.
Collection query:
select SMS_R_SYSTEM.ResourceID,SMS_R_SYSTEM.ResourceType,SMS_R_SYSTEM.Name,
SMS_R_SYSTEM.SMSUniqueIdentifier,SMS_R_SYSTEM.ResourceDomainORWorkgroup,SMS_R_SYSTEM.Client
from SMS_R_System inner join SMS_CM_RES_COLL_SMS00001 on SMS_CM_RES_COLL_SMS00001.ResourceId = SMS_R_System.ResourceId
where SMS_CM_RES_COLL_SMS00001.IsApproved<>’1′