Looks like Pezz gave you the route you'd need to take to get over to the east side from the Port Authority.
Prudential NJ Properties
DeCamp runs from West Caldwell to NYC. Here's the link: http://www.decamp.com/commuter.htm
You can also check out NJ Transit for more information on the bus routes and/or rail routes if you are interested: http://www.njtransit.com/hp/hp_servlet.srv?hdnPageAction=Hom
I hope the above links are helpful to you.
Should you require any additional information in North Caldwell/West Essex areas, please feel free to contact me at your convenience. I not only work in West Essex, I live there too.
Gina Chirico, Sales Associate
Prudential New Jersey Properties
973-228-1000 ext 132 (office)
Try to Google the NJT lines.....it will give you times & routes.
You can get this information from my website listed below..............give it a visit! If I can be of any further assistance, let me know.