I stayed at the Hilton Garden Inn a few times, they have a shuttle bus. Depending on the arrangement SBE, it may run extended overnight hours during the weekend. It's your standard level convention hotel. Wi-fi, refrigerator, and 32" HDTV. If you want something more upscale, try the Sheraton across the street. The Hilton is my choice for any thing hosted at the NJ Convention center. Harold's, a New York City styled deli, is on the same block as HGI. It's within walking distance, and a pastrami sandwich is good for two people.
Feel free to ask more questions, and the more specific the better.