[Closed] Recommend me - a shed

To put my bikes in.

I'll be moving house soon and will need to transfer my bikes from their currently damp, dank, breeze block outbuilding. I'll need to get a shed to store them in, hopefully with space for fettling. I want it to be nice and dry inside (steel bikes) and security's important, too but even a brick building has wooden doors and glass windows so I doubt that anythings really secure.

We could go ahead and get something built but are also looking at the current flatpack options (with the possibility of putting down a concrete base). Options include wood, metal and plastic and I was wondering what people would recommend. Metal sheds seem pretty cheap but I've been told that they have a tendancy to 'sweat' and get damp inside, I suspect that plastic offerings might do the same so is good old wood the way to go? Also any particular makes/brands that are good?