Off the peg... let's conclusively answer the question "Which one?"

This is a great idea . . . i wish i had had a resource like this website when i bought my first ss/fg . I dont think you should put a price limit on it though as a Steamrollers and Condor Pistas should be included (you can buy the Pista OTP in Bike Hut)

There should be some barrier. Otherwise why wouldn't the Serotta Singolo be included?

It's an "entry level off the peg shoot out".

What's entry level? Well £400 > £450 is definitely the average price range, and gievn that there's such a wealth of choice in that range very few people considering their very first fixed/single-speed for commuting will see any reason to go above that, and above £500 seems a bit daft given the number of bikes already available to you.

I think £500 is a great line to draw.