If there is an appliance you want - let us know, and we'll add it to our list! If you want to upload your own appliance, no problem - we'll do it (there is a £10 setup charge for this).
If you want to order, just go to http://billing.midnightsoftware.co.uk and select VMWare appliances as the category! This service is so new, we've not even put it on our website yet, so WebHostingTalk users will be amongst the first!
We are hosted in the Bluesquare datacenter in Maidenhead, and own all our own servers (we are not a reseller). All prices exclude VAT.