If you go to specktra.net and search through it, you can find a bunch of information on it. They also show a couple of different methods for how to do it using different heat methods as well as a couple of non heat methods.^^ I was going to suggest just that. I've seen a tutorial on how to de-pot MAC shadows before.. if only I could find the link.. I think I saw it on temptalia.com.
i was going to say that.lol..I think Dior make the best eyeshadow palettes. All their palettes are baked eyeshadows so they last for ages.
I've just bought the new spring limited edition no.609 Earth Reflection palette. It's gorgeous!