Thanks an an eBay job lot I purchased, I have the following DC omnibus volumes to trade:
DC One Million - unsealed and some minor shelf wear, but still in great condition
The 52 - sealed, tempted to keep this one
The New 52 Zero - sealed, but the plastic has a tear in it
DC Villains Month - sealed, lenticular covers
Year One Five Years Later - sealed
Looking to trade for Marvel omnibuses/OHC, open to offers, will go back to eBay if nothing works out.