A group of friends and I where discussing a similar thing a few nights back on the 'distrubtion' of software you buy but don't want anymore. In this case passing on XP to a mate if you downgrade to Vista.

For example say you decide to sell your DVD player and a couple of movies.  As long as you obeys the laws as a seller, even for second hand things, and you ensure the buyer legal rights as a consumer are maintained thats all legal. 

But you can't do the same with software or poser content. Thats because it's not strictly yours, you only licence the use of it. One mate reckoned if you treat licensing is in effect paying for a service. Then whats to stop you selling on content that you don't use ?  

He raised the idea that any attempt to stop you could actually be an offence under consumer laws - perhaps under the banner of unfair terms and condtions. 

Pinky - you left the lens cap of your mind on again.