One feature of Painter I really like is the way it shows you a rubber band from your start-point while you are placing your endpoint of a straight line.

In photoshop CS3 I click the first point than then I have to try to imagine where the line would run while I decide where to shift-click the end point. When it's angled lines in a perspective view I can only see if it looks right after it's drawn and usually I have to redo it several times before it's correct, or draw it and then move it to where it should be.

Is there any way to get the visual feedback of that rubber band effect?