Advantages Win Server 2003 network be using NLB?

I have 4 separate servers in my network of 60 +/- users:
– Terminal Server & ThinClient Server (Win Server 2003)
– DC & Exchange (Win Server 2003)
– Primary DNS & File Server (Win Server 2003)
– Print & Backup & AntiVirus (Win Server 2000)

We’re currently not utilizing NLB. If I understand it correctly, it would distribute NIC traffic through the servers rather than having a majority of it going through the Terminal Server and File Server. Is that right?

The users connecting to the Terminal Server are experiencing intermittent speed/performance issues and I’m looking for network load balancing to help resolve them.