I stuck a message on the underscore mailing list to judge the interest in running a plone workshop here at netsight. The response was good, so later this summer (when we have finished kitting out our new boardroom) we will try to run a couple of sessions - a general plone demo for those interested in knowing more about it and a "how to skin a plone site" practical workshop for designers and developers. These workshops will be free and probably fall under the banner of a bristol skillswap.