Miller's have a load of it at cut rates prices. I can't recall just how far the levels of thickness go, but what they have should do (and I'm sure they could just order in some thicker stuff if not). Poundland sell advertisement signs from time to time in stacks as well, the stuff's only a few millimentre's thick, but its at a cut rate price. The Art Store by the Gallery of Moden Art have packs of plasticard, but as I recall they're a tad expensive and mostly variety packs for the sheets (though they do have a wide variety of tubes, corrogated sheets etc) and aren't the largest. Passtimes the model shop and Jamieson's both sell plasticard as I recall-mostly the fiddly bits-, but you might find a decent deal in either of those aswell (plus in the later's case they have plenty of vehicle acessory kits for a few pounds each which you use for details etc).
Going off on a tangent much? ^^'
I take it you go to one of the Paisley area clubs rather than a West end one (like G3 Gamers, hint hint)?
