I have network of more than 50 users and I want to monitor all of machines for there downloading stats. How much(in MB's or GB's) been downloaded or uploaded by every machine. Every user has Administrator access to there machine so dont want to install any kind of SNMP or client but also not skeptical about that too.
I am linux/unix admin so looking for a centalized monitoring tool like OpenNMS,cacti,mrtg etc.. But if windows monitoring tool fulfills my requirements I can use that one too..