The ultimate JBL's at £20k were in the HIFI Choice special edition (previously mentioned). They were rated rather well, but not to the same degree as the ATC 150.
I wonder how you lot rate PMC's larger monitors with Bryston 14 or 9B SST power? Has anyone heard them on an a-b comparison? - specifically IB2
http://www.pmcloudspeaker.com/ib2.html