82capriRs, the Essex County Hospital is near you. I have a few pics in a post on the first page. Here's a link to a LOT more.
Essex County Hospital
Much as I don't usually do this, I believe this to be the address.
ESSEX COUNTY HOSPITAL CENTER
125 FAIRVIEW AVENUE
CEDAR GROVE, NJ 07009
To the best of my knowledege, they demo'd 2 buildings and the rest are slated for the wrecking ball. Don't know a time frame though. It's a little far for a casual drive and the wife isn't too interested in exploring abandoned mental asylums and their tunnel systems with me. I might have to sneak up there soon on a friday while she's working tho.
PS. I was just informed by jrxybullit that it IS illegal to be on the grounds there and if you go at night and get caught, you will get arrested for tresspassing. I'd suspect getting caught in a building will also earn you a ride in a police car. He said he got permission to take some pics, so if you go, good luck and post your results.