The steps to create a lab installation are easy with Windows Vista AIK. With a clear idea of what you need to install on the machines and the requirements described below, a couple of days may be enough to have everything in place.
Also, only a single image may be applied to different machines.
The steplist described below is taken from Getting Started with the Windows Automated Installation Kit.
The following steps can be applied to take the image of a single disk lab machine.
diskpart /s diskpartcleanscript.txt
Where diskpartcleanscript.txt contains the following text:
select disk 0
create partition primary SIZE=60000
select partition 1
create partition primary
select partition 2
use the following script:
net use \\master\labimage /User:master\lab *****
robocopy \\master\labimage . install.wim
imagex /apply y:\labimage\install.wim 1 c: