Hi gary, we're growing for the first year too and i'm a bit obsessed already!
Do you have any Lidl, Wilkinsons, Poundland, Home Bargains shops in Hull? If so, is there any way you could shop there for the bits you want? I've bought all sorts, seed trays, modules, seeds (buy 1 pack get one free!) all at cheap prices and you'd save yourself a bit of postage too (to spend on more stuff ;D ) Good luck & have fun!