Good place in York is the House of the Trembling Madness down Stonegate. They have a very good range of bottled beers in the shop downstairs.
In Norfolk I would go for the likes of Humpty Dumpty, Grain, Panther or Wolf who all do very good bottled beers. Roy's have quite a good selection, strangely Lathams keep a good range of Humpty Dumpty.
IMHO a bottle of Humpty Dumpty Broadland Sunrise can give most Yorks beers a run for their money.
Enjoy!