Sorry for the late reply guys, didn't check this topic for some time.
@ martinusv: cheers! I'm also waiting to see myself working on the mines again. No, wait, I'm waiting to see them finished! The sheer amount of work is just so un-motivating, especially since I only have time to work it 2 or 3 weekens per month (and there are more things I want to do on the weekends). And besides, I'm working on some 10 other fairly big projects too (and there are even more of them in my head).
So, long story short, I need more time.
@ Sacrilege83: thanks! Much appreciated.
The site here looks a lot better, yes. I would love to see TLA back in it's former glory too though!
@ Telchar: haha, yeah the normal white polystyrene is only ever useful in some cases, not for making rock faces. You can use it as the big structure of something but not much else.
Anyway, the blue stuff is called 'Roofmate' as far as I'm aware in Dutch (and it seems to be used to in English). I love working with it: it's very dense and has a very nice texture if you snap it off.