If you're looking for inexpensive, you can take a taxi or the hotel shuttle (if they'll offer it) to the Millburn train station on the Midtown Direct line of NJ Transit directly to Penn Station.
http://www.njtransit.com/sf_train.shtm
The property is one of Hilton's best, and you will enjoy it. If you want to do the Sunday brunch, reserve well in advance.
It's right across the road from The Mall at Short Hills, one of the best upscale malls in the world. And spend as much as you can, because it keeps my taxes down.
[This message has been edited by NJDavid (edited 02-14-2003).]