I've popped this onto the Calendar, for fuller details see http://www.amentsoc.org/events/exhibitions.html
It's on Saturday 4th October this year. I'll be going, I'm kinda addicted to trawling through the secondhand books plus I've trashed my net through over use and I need to replace my lost handle and stock up on pots/tubes again. It's a great venue, many "famous" entomological folks present (it's where I ticked Jonty Denton, lol), masses of kit, livestock, original artwork, membership of various clubs and societies and much much more. I ate dried insects a few years back, who knows what'll be on sale this year!
One word of advice, it gets hot and crowded in the main hall. Bring a bottle of cold drink with you - the food hall is rubbish and very expensive. Why waste money on over-priced drinks when you could be buying kit????
Hope to see you there, maybe next year we can organise a PSL stand??? (Mark, Graeme - thoughts on that?)