There is also
futurama.shopuk, an eBay seller who specializes in Futurama product and is based in the UK. I've bought from him and you can bid in confidence. A quick eBay search for Futurama sellers in the UK also turned up
redhotcomics, whose prices are comparable if not cheaper (though I haven't bought from him before). Between the two of them, at the moment you could pick up Leela, Kiff, Blue Zoidberg, Mating Zoidberg, Captain Yesterday, King Bender, Calculon, Santa Bender and Robot Santa - not too shabby. And by the way, if you're not planning to buy all the figures, hold on to your Robot Devil and Robot Santa BAF pieces anyway, as you're liable to be able to sell or trade them to people looking for them.