I am running a w2k3 AD Domain with WinXP SP2 across the board. I want to set up a box specifically for monitoring the network traffic for peaks and valleys etc. I know if the workstation I want to use is on a switch, the switch is going to give me just "my" traffic. I have a virtual stack of two hp procurve 2650 POE switches that provide me with the capabilities for port monitoring. Can I use this switch feature to coiside with a box setup for monitoring? I set up the workstation on a specific port on the switch and enable monitoring, what sniffer would be best suited for the capabilities I am looking for? And will I be able to change between protocols?