Do check out www.walrus.co.uk first and foremost! The shop called Walrus System is the only shop in the entire England dedicated for vinyl lovers and valve amplifiers of a certain European kind. You can listen to and buy a Breuer type 8b tonearm from them! Now, that's REAL hi-end! The shop is more like a storage house then a shop at the moment but apparently loyal customers liked it that way hence proprietors Les and Pete left it that way! So do prepare for a shock! By the way, do check out Selfridges, London's most flashy department store which is only 5 minutes walk from Walrus. Again, you won't be disappointed. And finally, round the corner from Walrus is the delightful modern Italian resturant, Locanda Locatelli which I recommend too, www.locandalocatelli.com. One word of warning: dining in decent resturants in London is very expensive and Americans tend to complain about portions of food given and services not commsnsurate with the price charged.... I agree too! That's why we called 'rip-off Britain' locally these days!
Bon Voyage!