Some Nice Represenations

The following views are quite nice for displaying proteins and nucleic acids:

selection: all
drawing method: tube
coloring method: segname (or chain)
why?  This show the backbone of the protein and nucleic acid strands

selection: protein and (name CA or not backbone)
drawing method: lines
coloring method: segname (or chain)
why? shows where the side chains are located, but they are thin so the
  backbone is still visible and the scene is quickly drawn

selection: (numbonds = 0) and not waters
drawing method: vdw
coloring method: name
why? shows ions.  The "not waters" omits cases where a water's oxygen is
  known but not the hydrogen.

selection: not (waters or protein or nucleic)
drawing method: lines
coloring method: name
why? shows whatever is left; usually ligands and crystallizing agents