Bitcoiners in UK. London part

[Yuhee]

Hello guys i dont know where to put this since i did not find any in the local posts. Moderators could move this to its proper place if they read it.

So in a few months i'll be moving to London and i would want to ask if there are anyone of you that lives there?. Is there some kind of services that i can input my money into a certain wallet address? Because probably most of my money would be in fiat and im wondering how could i transfer it.
Is there any site that converts btc to uk pound?
Also are there any services that i can also with withdraw to fiat after i converted the btc into pounds?

Thanks btc community for your help.