i enjoy using the Dameware client for this type of info gathering. the interface is very similiar to the ms active directory console / sms console. it will allow you to view your entire network, and even administrate remotely... granted that you have sufficient rights on the network of course. you can view ip info, and specific system info, similiar to belarc like you were requesting, and much more.

give it a look here: http://www.dameware.com/