This may sound like a dumb question, but I have just inherited a computer room with 4 HP Servers and 20 NT servers. Is there a program or multi[ple that will go throug each machine via the network and tell me: What applications are running on them, what patch levels, what OS's, what ports are open and who's logged into them?

I need to get all this info ASAP because I need to decide what our new hardware is going to be. Any tips I would appreciate...

Thanks