Found a good review of Maus from Abebooks Youtube channel — lots of reviews there, so check out their channel.

The Complete Maus:

The Complete Maus: A Survivor's Tale is available at Amazon (US | CA | UK | DE | FR | IT | ES | JP | CN)

MetaMaus: A Look Inside a Modern Classic:

This will be available on 4 Oct 2011.

MetaMaus: A Look Inside a Modern Classic, Maus is available at Amazon (US | CA | UK | DE | FR | IT | ES | JP | CN)

Check out more interesting stuff at www.facebook.com/ArtSpiegelman