I think Racer Rosa should be removed from the list, as they don't build frames themselves. They're more like a bike shop who have their own brand frames built by someone else.
Willhouse,yep the prices at steve's are fairly reasonable,but as with most things that are bespoke and hand built it is very easy to get carried away with extras,the basic F&F for me (reynolds 725) would have been approx £520,with a list of various extras mine cost substantially more,although to be honest it does give me a hard on every time i walk past it!! feel free to e-mail me and i'll talk through my experiences of going down the hand built route.