Pine is fine, be it bedding or cage material.
Until someone can come on here and actually relate ONE incident in which pine resulted in health issues with THEIR animals, take the talk for what it is - the regurgitation of internet baloney.
I've kept my snakes on pine for over 20 years and many of the breeders that are worshipped by the masses use it and use it in bulk.
The only problem with pine is that a couple of cementheads with no experience and no proof of anything got a lot of mileage out of a couple of articles that said it MIGHT be a problem.
BAM! Before you can say "cloaca" everyone is an expert on how toxic it is.
Every week somebody new to the hobby logs on here and gets bombarded by conflicting "facts" - feed in a separate container or your snakes will fart cyanide gas, ingested substrate kills 100% of the time, pine substrate causes ass rot, people who use aquariums support Hitler, etc. etc.
This crap has been covered 100 times. Pine is fine.
I'm in a real playful mood - so anyone who wants to go a few rounds with me on this, take your best shot.
But read this first:
http://ball-pythons.net/forums/showt...he-Pine-Debate