Maybe copy this and add it so the last post will always be the most up to date and form the complete list.
Scotland
Wales
Nis-Tec in Swansea, Wales. Nissan specialist with down to earth prices, recommended
Ireland
North
Lockwood and Greenwood, in Manchester. See forum diso****s. A independant X nissan dealership. Excellent place
Midlands
South
South East