Help model electrical wires

I’m making a still life and I’m having problems modeling the electrical wires. I tried extruding a circle but I found that this method is too difficult to edit and I like to change things often. I would like a more flexible method for this. Thanks

Here is a render of the scene I’m making. The red lines is where wires would go:


go with curves
http://wiki.blender.org/index.php/Doc:2.6/Manual/Modeling/Curves

… a curve with a curve circle as the bevel object.

Thanks everybody. I tried using a curve as bevel objects but I’m not into modeling with curves. I find it a bit difficult due to inexperience. Never used curves before. I do learned about curve deform so I used array and curve deform modifier instead.