It depends on budget, and your preference. For £50 a pair of magnums will suit you fine, but I would never want to wear them in harsh conditions for any length of time. Altberg or Lowa if your budget is topping the £100 mark. I use my Altberg Sneekers daily and they have never let me down.
There are some absolute steals to be had on Boots to be fair. I have seen some excellent conditioned quality boots be bought for peanuts by the lads. Not let them down yet. The prices I quoted were New Prices