You would need a PXE NIC to send an image across the network with no OS installed on the client machine. There are a couple ways to do that RIS, or from the console. If not, you could create a boot disk that would boot the client into ghost and connect to the console. If the BIOS and NIC supports wake on lan, you can also push an image that way, though I haven't had any experience doing that. It sounds like everything you're wanting to do and more is possible.
To get back about the master image you mentioned previously, it would all depend on how much time you wanted to spend creating the master image. The little bit I've researched this in the past was done thru adding a Windows 2000 answer file, then creating an image of that.
HTH