I'm looking to get some for a school I help out at some evenings. One of my mates said he had trouble booting them via a USB DVD Drive, but I was planning to use a PXE server like you so it's all good.
I'd just like to ask a quick question - did you have any trouble imaging the Acer Revo's that you have in the IT Suite and regardless of whether you did or not - what did you use to do it?
Saw you were in Cornwall with an allegiance to the Leicester Techs group - is that Pete??
Cheers - sorry if not,