i am a experience martail artist / teacher. i am moving to sheffield next month and need to find a club in sheffield

there's a shootfighters club in Hillsborough.
And a Sheffield Uni Jitsu club (although that's more traditional jj, rather than grappling).
I think there are others as well, i'm sure someone else will mention them.

Theres a BJJ club knocking around too - http://www.roycegraciesheffield.com/ - no idea how good or bad they are though!!!

Castle College on Granville Road used to, and possibly still do Jiu Jitsu lessons as one of their courses.