eeek - venue problems!

Am trying to organise a birthday piss-up for ME on Sat 21st but all my favourite venues are booked :( (I know - should have done it earlier). Have tried the Angelic, Babushka, Chapel bar and the Royal George.... does anyone know of any other good venues in the Angel/Kings X area? I'm just looking for a pub with a function room type thing or something similar...Thanx!