Sadly this interesting discussion appears to have got pulled, as a result of it being initiated by or on behalf of Bromcom.
One of the last posts was I think by a "Mike" from a Kent school. If you see this Mike, could you PM me. I think you implied you were looking to do an SLG v Webfolder consideration, which is what I anticipate starting shortly. I'd be interested to perhaps share contact details and compare notes!