Reloading Images of PC’s from NT Server

I have been experiencing number of Hard Disk failures lately and wish to copy the images of the Hard disks of all the PC’s on my network onto the server and reload them when the hard disk fails. Creating a copy of this Disk using Ghost or its equivalent is relatively easy manually, is there any automatic way to do this? Also what is the easiest way to reload the image? I have tried to create network enabled boot disks but it is a bit problematic with different NIC’s. Are there any White Papers, Books, Sites around that give advice on this area?