Hi Shaz
If I were you I'd have a quick look on Ebay. I bought quite a lots of crates of different sizes over the last couple of months and they are reallt cheap. I've had a small show crate for 4 years and its still going strong and the ones on Ebay are the same ones. The guy is Geoff Davies and I think he has something to do with Stock Nutrition.
Anyway, its worth checking out if you are looking for crates of any size. You don't have to bid, you just buy now.
Good luck.
Sandie