you can get the train to london from downham
it's a bit of a chav town though, but where isn't these days?
swaffham, like most places these days, had the railway taken out years ago.
generally, it's a nice area to live. there's not much to do, but if you've got a nice property and a car you'll be alright. not far to the coast. the flatness and remoteness can be either a good thing or a bad.