Hmmm, now this all depends on where in London you are.
There are plenty of good drinking places in and around London, but in the city is more pricey.
There is actually an Aussie bar in London, so you might wanna avoid that!
I could of course take you out for a drink, but people here would hate me if I killed the poo eater!
As for comic shops.
Most of the better ones have shut down & sell on the net, with only Forbidden "expensive" Planet still making a big showing.
Of course you could just come & buy some comics off of me, but I dont have TPBs that you love so much!
I'll do some investigating to find out whats still open comic shop wise, and let you know.
Problem is I have been out of the game for 6 years, so I dont really know who has the best prices etc!