CM,

Apologies, I hadn't realised it has been that long since I last visited. Too many forums to look at :)

3mm MDF - also 2mm and 4mm from same supplier. I will have to wait a little to get the full details but this may get you started. The company we use is called Lawcris and is based in Leeds, I think. They were at least 50% cheaper than our local supplier in Liverpool. Try googling the name, I'm sure it will come up.

All the best for Chrimbo and the new year - it's sad that I'm typing this on Christmas day but I've got to stop now as Dr Who is about to start :)

Mike