The only problem I have with the ebay as a price guide thing is you get the odd price that throws all the others into a spiral. I'd be keen to know as well. I've got a lot on vinyl under my stairs that I should get rid of sometime. Another good source of price is www.recordcollector.co.uk .Just do a search for KLF or JAMMS and you'll see "actual" selling prices. Most retail shops work on a 2.6 margin, so you might get £35ish for every £100 of retail value. Andy