Fortress Age Merc Spam, and my current favourite, the Fast Industrial.
There are no step-by-step build orders, just some sound advice and tips and that I have learnt on my own after playing almost 200 games as british.
Of course there are replays to go with the guide and I advise you to focus more on my response to the enemy playing than focus on my 'build order' (since I don't have a build order)
British are a very good civ in the right hands, but they need a LOT of time. If you are willing to invest the time and effort, I promise you will be rewarded. Nothing is more satisfying than repelling a rush or crushing an FF with 'noob turtling'
For those that just can't be bothered to read all of that, or don't want to read a bunch of stuff that could turn out to suck, here is a fairly decent and newer replay of me using it so you can judge if it sucks or not before reading the guide.
And here is the guide itself Comments and suggestions and welcome