If you're planning to sit down at JP's poker night you'll need at least two grand

Other than that I'll probably take about three hundred quid which will pay for carrefour visits, beers in the circuit, the shampoo bar, pub visit to Arnage and pub visit and meal in town centre on friday night. We tend to all chuck cash in the kitty for food and stuff.
I should point out that I tend to violently over spend and my mates are planning to take a max of £200 each.
As long as you take cash out of the machines with a debit card (or pay in shops with one) and not a credit card, you will get a better rate than buying currency before you go