I think I've only ever seen two people riding fixed since I've been back in the West Midlands. I ride gears myself.
Fred Williams in Wolverhampton do some track stuff to service the local velodrome at Aldersley.
http://www.fredwilliamscycles.co.uk/FWC/index3.html
Wolverhampton Wheelers run various nights at Aldersley, including a track league on Wednesday evenings through the summer
http://www.wolverhamptonwheelers.co.uk/html/track.htm
I'm hoping to have a track bike sorted (and have my fitness up to snuff
) in time for next years league.