The new fitness suite at the new (ish) Crowne Plaza hotel in Newcastle (behind central station) are offering 3 year memberships at silly prices when paid up front.
£499 off peak (9am-4pm Monday to Friday, 6pm-9pm Sat / Sun)
£749 peak (all times)
I signed up to the off peak offer today (oh the joys of freelancing!) and it's a lovely facility.
If you live in the area, it's worth a look.