Antenociti\'s Workshop has all the stuff you could possibly want for basing and terrain. Decent prices and good quality material.
I have no experience from Mick\'s stuff, but I know he has several different colours of forrest litter and if I remember correctly people have been pleased with his products as well.
Ive just made a large batch of my own leaves from birch tree pods which i just twist and the tiny leafs falll out.
Apparantly this is what H&A\'s are .
I have not tried Mick\'s stuff but I have a stack of bits fron Jed at Antinociti\'s and they are excellent to deal with and usually ship out that dayso you receive it the following day near enough depending on the postman that is
yep we all use the same raw material
Just re-stocked the natural \'Leaves\' and I\'m in the process of collecting to replenish the colored stock. I\'ve also inserted a further sifting in the sorting process, so there are even less seeds getting through. Oh. and dropped 50p on a bag too