learningscript

Does anyone know of a script (possibly to work with sysprep.inf) that will reassign the original client hostname (NetBIOS name) via resolving the client assigned IP address against DHCP or a WINS server? Let's say I have 50 client PCs and I re-image them using a ghostcast server (Note: Using "Configuration Refresh" works but not preferred as who wants to purchase ghost client licenses for over 1,000 PCs) Post imaging generic hostnames were generated via sysprep.inf. I want to retain their previous hostnames that are registered with a WINS server or assigned to IP address in DHCP. It would be cool to have a script that generated and ran a second sysprep.inf file (post generic hostname assignment) on the client that would input the assigned NetBIOS name from WINS or DHCP based upon client IP address. Any thoughts?