Ebay.
By title.
In batches of 25 (or so).
USPS express mail boxes.
Show a picture of the set.
Add a reasonable BIN.
Bat's titles sell better than Supes.
Batman and Detective sell the best.

'Reading' / 'Reading soon' stack: DC/Vertigo - ArtOps, Batgirl, Gotham Academy, Gotham by Midnight, Injustice; Marvel - Allred's Silver Surfer; Other - Abe Sapien, Descender, Fight Club 2, Goon, Mind MGMT, Southern Bastards