Value Guide for Buyers & Traders

I just got the one i'm unsure of at the moment:

I am Legend Future Shop 1st Edition (Printed Blue Banner) Sealed
 
I'm thinking of getting rid of a few of my rarer steelbooks and was wondering what the current value would be on the following:
Batman Begins (JP) Brand New, Sealed/Mint
Return of the Living Dead (UK) Brand New, Sealed/Mint
Sucker Punch (US) Comic-Con Exclusive Unsealed/Mint and Polybagged
Inglourious Basterds (CA) with dogtags Unsealed/Mint and Polybagged