Title 2C Criminal Code Annotated, with comments and annotations by John M. Cannel (Gann Law Books, annual editions), latest edition on two-hour reserve at first floor Circulation desk, call number KFN2361.A334 C362.
Kenneth DelVecchio, New Jersey Code of Criminal Justice: A Practical Manual (Pearson Prentice Hall, 2005), on reserve (KFN 2361.A3339.D45). Analyzes application of the statutes to particular fact patterns.
New Jersey Code of Criminal Justice and Motor Vehicle Laws : with related statutes and court rules (Thomson/West, annual editions), latest edition on reserve (KFN2361.A339 A2). Unannotated, but has the virtue of including penal statutes from titles other than 2C.
Gerald D. Miller, Criminal Law, 2nd ed. (West 1990) (New Jersey Practice series, volumes 33 & 33A), NJREF room, call no. KFN 1880.N4
The New Jersey Statutes, including the Criminal Code and other penal laws, are freely available at the New Jersey Legislature's web site, http://www.njleg.state.nj.us/. This will sometimes be the most up-to-date version, but lacks a practical table-of-contents (the titles open directly to full lists of sections).
The statutes at the Legislature's site are unannotated. A version of the New Jersey Statutes that is annotated and searchable, and provides a complete table-of-contents approach, is available through Westlaw Campus Research (see above)
New Jersey Model Jury Charges-- Criminal (on the Judiciary website)