3D to 2D coordinate compression

Hi all,
 At the risk of sounding retrograde, does anyone know of a good (preferably
 simple, UNIX based) program to project 3D coordinates down to reasonable
 looking 2D structures?  Obviously a trivial suggestion could be to
 arbitrarily wipe out one axis, but as you can imagine that can produce some
 pretty awful looking tangles.
                                       - Gerry
 Gerald Lushington, Director
 Molecular Graphics and Modeling Laboratory
 & Cty Asst Professor of Medicinal Chemistry
 University of Kansas
 1251 Wescoe Hall Rd.
 Lawrence KS 66045-7582
 ------------------------------------------
 3021 Malott Hall          Ph. 785-864-1140
 glushington : at : ku.edu        Fax 785-864-5326
 http://www.msg.ukans.edu/~msg/mgm.html