Serva - a new PXE boot solution
Serva is kind of an automated tftpd32. You can set up any PC to be a proxy PXE server (even if there is a DHCP server on the network) and it automates RIS and WDS.
Just plonk the install DVD contents in folders on your PXE server (XP or Vista or Win7 etc. box) and Serva will automatically create the boot image and boot menu for all the OS's.
It is really quite neat!
The website is here
Some info on how to set up a PXE server for XP and Win7 installation via PXE using Serva is here.
Hope you find it interesting.