Hi Cobber,
It's getting sizalation (sp?) under the roof sheeting and I plan to line all the walls. I used 19mm chipboard flooring on the internal walls of my old shed and it was great as it's strong and flat and you can screw hooks for tools and stuff straight into it. This time I think I'll put some insulation bats behind it, if anything for a bit more noise insulation.
This morning it looked like this:
Cheers