We're in a similar sitiuation to you, 3 bed detached, both working, live in Berkshire with 1 hungry spaniel. Electric and gas we pay a fixed rate by direct debit and often find they owe us money every year. Below is our current monthly outgoings, we could probably get cheaper but too lazy to look... which is sad and daft, especially as I'm a Scot!!
Good luck with the move, we're in the process of moving ourselves so know what you're going through...... STRESS!!!
Telephone 21.00 BT
TV License 11.37
House Insurance 39.95 Legal & General
Electric 36.00 Southern Electric
Gas 46.00 Southern Electric
Water 29.05 South East Water
Council Tax 143.00 RBWM