The cost of living in the UK is high but it depends on where your work is. I will try and break it down for you what you can expect to pay in the UK:

2 Bedroom Flat - £600 (outside London fully furnished.
Electricity- 3 months bill with southern electric, N power (£180).
Water- £60- £70 (3 months).
Council Tax (depending where you stay)- £60-£80
TV licence (when u pay quaterly)- £141 so monthly about £33.
Virgin Media phone, broadband and TV (Package)- £30 with just a minmal amount of stations.

That is what we pay basically outside London up north.