How to take a neat picture of a model?

I have been modelling for quite a while (using Blender)
how do I take take pictures like in this?

Notice all of the Lines/Edges are defined by a thick black line.
That is just an example but I see many people use the same technique.
Very frustrating to have a good looking model but the picture makes it look bland because you cant see the edges.
Thanks for you help.|||just print screen the view port?|||lol. look at the style of the 4th and fifth pictures. the models are defined at all edges with a thick line. thats what im talking about.|||Those pictures were done in Maya not Blender.
There may be a similar render option in Blender but I'm not sure.|||ahhhh thats what I was looking for thanks!
Knowing that makes me feel better about my workaround
In blender I simulated the render effect by duplicating the unit and making the duplicated unit just a TINY bit bigger and rendering it wireframe. The original model apply white w/no specularity and full reflection material and on the duplicate wireframe apply a black no specularity no reflection.
For Blender users who are interested, here is an example.

^Above^ is a picture with the wireframe a little bit farther from the white model (along the lower edges of the unit) so you can see how it works.
EDIT: BulletMagnet|||Quote:|||heh heh... yeah.... thanks for helping a noob out ;D