Well, apart from BMW Wakefield for my main stamps/servicing (not sure I'll carry on using them, but might do), I use Selby TVR for my other jobs. Ie, MOT, any kind of work like bushes, rear discs, the more fiddly jobs that I would prefer done outside of BMW but still done right.
They also now specialise in Ferrari and Porsche, as well as TVR. They are £40 hr + vat iirc.
Really nice friendly people, take lots of time with you and the car, will get in parts from wherever you want them to get them etc... but they are outside of Leeds to the east, not just the east side.
http://www.selbytvr.co.uk/
Dave