Help me value my steelbooks!

[brake]

Hi guys,

Apologies if this is in the wrong section.

I've been out of the game for a while and was just dusting off a few Steelbooks I had lying around and was wondering what the value of them would be these days.

I'm genuinely curious about their worth. I'm not even interested in selling most of them so please don't think I'm spruiking or something!

All mint.

I've left out the ones that are still easily available.

Most curious about these:
Total Recall GERMAN/Austian (extended) - opened
Metropolis UK - Opened
Psycho UK - opened
Green Zone AU - opened
Iron man Lenticular iron pack thing from Target I think (no. 06556/30000) opened
Gladiator UK - opened (remastered disc)
Kick Ass UK (Black with yellow writing) opened.
The Hurt Locker KOREAN - sealed
Saving Private Ryan GERMAN - opened (this one:http://www.amazon.de/Soldat-James-li...2971196&sr=1-1)
Cars US - opened
The Lion King TAIWAN - Sealed (same as HK Version)
The Liong King HK - Sealed (Same as taiwan version)
Knowing AU - opened
Inglourious Basterds GER - opened
District 9 - GER - opened
Terminator 2 UK - opened

The Rest:
Transporter 3 AUS - Sealed
Toy Story 3 Best Buy tin iron pack thing (opened)
Robin Hood AU - sealed
The Wolfman UK - opened
Edge of Darkness AU - Opened
2012 AU - opened
Sin City (I think this is the Canadian one) opened
The Lion King Best Buy Iron Pack thing (same as Future Shop?) opened
Paranormal Activity AU - Sealed
Michael JAckson's this is it AU - openeed

Thanks guys!