Whilst there, I was introduced to Central Otago Pinot's by a friend, who runs this company that makes an excellent Marlborough Pino, called Tohu.
Tohu is NZ's first Maori-made/owned wine offered for export. It's hard to get in the UK, although you could try these guys and see if they have any.
In the meantime, I can highly recommend Sainsbury's Central Otago Pinot Noir, particularly given the price of under £10.
Usually the Central Otago Pinot's you see in wine retailers in the UK start at least at £15, and often more like £20-30.
So at this price it's a bargain. I've just bought half a case for summer drinking.
Decanter gives it 16.5 from 20, and I'd say that's about right. They describe it thus:
"A vibrant, accessible Pinot - at a good price too - based on a lovely mix of dried flowers and juicy cherry notes. Augmenting the fruit are further red berry flavours which display a good, crunchy character.