You really need to be more specific.
I'm wondering the same thing
Of what ? You can Google what you have in and it should send you were you need to go , also you can try going to E-bay and check what you have , out there
Don't check on ebay because ebay tries to sell at the low prices but that will give you a general idea of the price range. What you need to do is go to www.thefind.com and type in the name of the pack.