if you are running linux ( Highly recommended ) i would suggest ethereal a nice neat little package capturing program, this could show you what you bottel neck could be by displaying all the daily junk that goes over a network.
but as a sysadmin exposed to RM stuff on a nearly daily basis i would say your bottel neck IS the RM software an over priced peice of poo that comes free with winblows anyway!
any who this is a linux forum not a windows one so lets end it there, if your after more network utils point your ( linux ) browser at freshmeat and/or sourceforge
www.freshmeat.net
www.sourceforge.com
alternativly do a search in google