Hot, nice find
No you don't need a membership but if you've got one you can get a discount off every night you stay... I think it's £3 for adults and £1.50 for kids
We stayed in a family room at one last year next to Radio 1 in London it was great. You do need to have a membership though don't you to book tickets? Can't even remember properly now (lol)
YHA is brilliant nowadays although you can't take your own booze to many hostels as they're licensed nowadays.
Great thanks for Posting (y)