What Dave said Steve, let me know when your coming over and we'll see if we can't arrange a visit. I can't promise you'll sleep in Elizabeth I's bed but I can in a room built before she was born!
The Dales can get busy in the Summer especially around Hebdon Bridge, (it tends to be thought of as 'Last of the Summer wine' country now rather than Herriot country). I tend to like County Durham, around Teesdale better myself The people are the friendliest on Earth.
Teesdale
From there you have access to Yorkshire Dales, North Yorkshire coast, The Pennines, Northumberland and, just across the Pennines, to the Lake District, my favourite part of England (Fabulous geology!), but as Dave said maybe better in October as it can get busy in Summer.
While you're here don't forget to visit York and Durham Cathedrals, Durham is the best, a World Heritage Site, still with Viking, influence on the architecture. Even as a non-believer, I find it very powerful.
Colin
Colin S38980.2961805556