Interesting link to Kingsway Cycles. I hadn't paid them much attention until now, largely because they're down a side road where I rarely go, but I do recall them having a lovely old-school workshop crammed with bikes and bits, and they helped me out with a seized-up part on a brake lever once for the princely sum of nothing, so I'm prepared to think highly of them.There's Kingsway Cycles who are near the Grafton Centre who have a good range of tourers;
http://www.kingswaycycles.com/products.php?plid=m1b0s21p0
And Richardsons Cycles on Newmarket Road;
http://www.richardsonsonline.co.uk/cycles/touring-bikes/146/
Agree about Bicycle Ambulance - good, knowledgeable service and quick turnaround, my repair shop of choice and a great source of mechanical advice.Bicycle Ambulance .... well worth a visit .... Best bike shop in Cambridge IMHO.... super guys who really go out of their way to help and they are very knowledgeable.... some of the guys here do Audax etc and will sort you with a good bike .... this is where I service all my bikes, and have seen guys bring their Pinarellos and Cervellos from far off places such as London to this shop for servicing:
http://bicycleambulance.com/
Primo is deffo high-end;Colnago and Cervelo although they seem to be pushing Trek a lot these days and they still haven't sorted they're website; can be a bit confusing what they actually stock as well.
Had no problems with the Evans in Cambridge and another thumbs up for Bicycle Ambulance at Park St.
I won't say anymore about CycleKing;guy at work bought an Amacco(I know) off them and had a few problems with it which they didn't exactly fall over themselves to help with.
I have no idea about bike shops but I think you may find this appealing. If it is not too late.
http://www.oldbicycleshop.com/