Most of the supermarkets do unbranded versions - I replaced all of my baking trays this year by buying one each time I went monthly shopping - new roasting tin, new baking sheets, new pizza/chip sheet (which have holes in them so that the stuff crisps up). I don't think any were more than £1-3 each depending on size. I got a set of pans for Xmas, but again you can get them cheap in wilkinsons or the supermarkets.