I have a small LAN with some Win7/XP computers, all with limited user privileges. I have administrative rights and can access the computers through RDP. My laptop is Win7. I have a limited internet connection and would like to know if I can put any FREE software in these computers to monitor their internet usage and download volumes and send me an email through the LAN (we have a small mail server also setup) or I can check the statistics remotely through the LAN. I have installed NetWorx on one as a test case with the icon hidden. However to check the usage I have to RDP into this and then check. If anything easier available please advice. My main need is to know the downloaded volume but if I can also know the website visited it would be great.