We're in beautiful Northumberland :-) Where are you moving to?
I know what you mean - we moved from London to Aus at the exact same stage in our lives - no kids, recently bought a house, careers really taking off etc. - and a part of me wishes we hadn't done that. I wouldn't swap our Australian experiences or friends for the world but our timing wasn't ideal.
I'm sure you'll be fine back in the UK, you're at a different stage in your lives now and your reasons for going make perfect sense!
PS We moved back with a three year old and a one year old - the journey isn't as bad as you'd think but I highly recommend a stopover or two, made the world of difference for us.