Unfortunately Ben, I sold my ankle weights only last night to a nieghbour who's just joined the dive club I'm a member of, I let him have a pair of Beaver shot ankle weights, Typhoon fins and a Scubapro snorkel for £20 the lot... I wouldn't care, he won't need the ankle weights for a few month yet anyway.. soz mate
I paid £14 for the Beavers, the dive shop I use (my local) is Denney Diving who'll be at the Dive show anyway, so I'll introduce you and make sure he gives you a good deal, which he will anyway, he's alright is Chris.
Saying that, if I can find some cheap Jetfins at the show I'll let you have my other ankle weights which are really cool, hence me selling the Beavers in the first place.