I had a girlfriend in Cambridge in the early '90s.
I think it was the store in Mill Road (on a corner opposite a church?) that had loads of pretty CNC goodness, I bought my Race Face Turbines there along with countless other bits and pieces.
There was another one somewhere a bit out of the centre where I saw my first San Andreas (probably my first FS bike too! ) covered in clay leaning on the counter. Another memory is of all the matt black and neon Marins in the little store near Kings - which prompted me to buy a Marin as my first 'proper' bike.