Fully expect to end up somewhere between 350 and 400. Any less is a bonus.
4 or 5 pints each day (£35), one big meal and a mini munch each day (£20), £15 on miscellaneous shite each day (postcards, cheeky wee cocktail, mixer for spirits that I'll be bringing with me, etc etc).
Like some previous posters this is my main holiday of the year so I don't grudge the spending.