Illustrator Scripting :: CS4 - Populating A Drop Down With List Of Printers?

I'm trying to populate a drop down field with the list of available printers. Here's what I have:
 
var printerList = app.printerList;
var w = new Window ("dialog");
w.orientation = 'row';
var dropDown = w.add("statictext", undefined, "Please select the printer");
var dropDown = w.add ("dropdownlist", undefined, printerList);
dropDown.selection = 0;
var buttonGroup = w.add ("group");
buttonGroup.add ("button", undefined, "OK");
w.center();
w.show();

This will populate a drop down with "Printer, Printer, Printer, Printer" for each printer instead of the name of the printer (which is what I want).
 
When I try:
 
var printerList = app.printerList.name;
 
I get a drop down of blank entries.
 
How exactly does the printerList work?