where to find quality recording of Radiohead?

I don't know about the UK Cd being any better than the US version, but you can get all Radiohead stuff on vinyl. See http://www.hmv.com/

Beware of Radiohead on vinyl. I've collected Kid A, The Bends, and Pablo Honey on vinyl and was very disappointed with the sonics compared to the domestic CDs. It may be worth it to look at the vinyl manufacturers and compare before buying.

I have 10 inch record (2 record sets) of Amnesiac and Kid A on vinyl and they blow away the CD versions, on my system at least. The Kid A version I have was manufactured in Holland (?) and Amnesiac in Canada. I bought them at local record shops (in NYC). I've seen copies of each at Tower Records (although exorbitantly priced-- $40 a copy-- whereas I got mine for about $25 each-- which is still kind of steep.)