Well I have seen some pretty big spiders in the UK, admittedly not that big but still three inches or so across the legs. Big enough to not fit under the pint glass I was trying to put over them. I guess we are luckly they are not likely to bite us though like over there. Can't say I am a fan of spiders but I make a point of not squashing them (Unless by accident.) as they are good at getting rid of other bugs. I've got one in the corner of my bedroom ceiling and have managed to convince myself it is not really a spider but is a beetle just so it can stay there and hoover up any mosquitos and other less desirable things.