A little caution on those new Sin City editions:
I've read a couple of complaints about the binding on those. I had a look at them at my LCS last week and agree; they are very flimsy and I don't like them at all. Rather than going mail-order, I'd suggest you try and find a shop near you and judge before buying.
Reading Hellblazer is a real chore, thanks to DC's refusal to issue the trades in anything resembling a proper order. The next time they find a new Vertigo trade editor, deleting everything in print now in favor of new, numbered volumes should be the first thing they do. (Continuing their collections of Doom Patrol, Shade the Changing Man and Sandman Mystery Theatre should be next on the agenda!)
--Grant