Never used this site myself but might be worth downloading a form and sending them a list of what you have. At the least you will be able to get a valuation of what they think your collection is worth, albeit probably lower than the current market value as I guess that's how they make money. I think they are based in the UK but have dealt with stuff from across the globe..

http://eil.com/shop/wanted.asp?artist=Bon-Jovi