If you like deploying apps with group policy and managing desktops with Remote Desktop and Remote Assistance, read no further.
Purgos 3.0 by SofTulz.net a great application for managing Windows workstations. It can gather information about workstations, add/remove applications, remote control, create reports, and much more. With the proper ports setup in your firewall/router and the Purgos console installed. You can manage multiple Purgos server installations.