Hi mate
Ive got my first trackday at Rockingham on sunday so i can tell you more next week but ive been to watch some of the lads there before and pit garages clean tidy and water tight with power for tyre warmers avalible,burger van on site,garage for fuel close to track and im told there is fuel on site but only at lunch.
Local accommodation as per info on booking is
Hotel Elizibeth 01536 401348
The Hunting Lodge Hotel 01536 771370
The White Swan 01572 747543
Hope this is of some use mate.