Bike rallies run all year if you're just wanting a weekend in a field. Me and Ugly Duckling have promised ourselves that we'll do one a month from April to September next year.
AIMCC have a rock night one Saturday a month at Stanfree, about a fiver entry with free camping. That's just up the road from Bolsover Castle and Hardwick Hall if you want a bit of culture, or about 15 mile from Matlock Bath if you don't.
There's pubs at Matlock and Darley Bridge that do camping for about a fiver a night if you fancy the weekend in Derbyshire.
Or what about a weekend at Skeggy staying (free camping) at the Anchor at Friskney.
There's also a cracking campsite at Naburn Lock just outside York, with a river boat into York on a Sunday.
I wouldn't mind weekends in the Lakes and the North Yorks coast if anyone's interested and knows of decent biker pubs to camp.
Are you organising another weekend up't North as well RK?