There are quite a few EU/UK PSN players.
I know this because we lock our lobbies private when we play to avoid lag from the rest of the world =D
I actually popped into this section to try sort out a weekly staged lobby for the european area.
The idea was to have a weekly lobby to help out newer people, record all the matches so I can YouTube them and make no money from it (because adverts suck) and meet more local people, and see where it all goes from there.
Edit: Plan on running one tonight with a few friends (All from the local continent) but if anyone is interested in trying to get in for a few grab me on PSN.
Warning: Chat may include completely pointless banter and talk of really nerdy things.