u do those renders in 3ds Max 6...thats where i do mine. then get a crack for it and wolla, a free 1000$ program or w/e it costs.
heres how u do it-
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Q: How do I make WIP renders look nice?/What’s the best Way to present a WIP model?
A: When rendering WIP models, don’t use any reflective materials – they make it hard to see the surface of the object properly. The best way I’ve found is to use the default grey material and a skylight.
To set up a sky light, go to lights in the create panel, then skylight. Create one anywhere in the scene then click Rendering -> Advanced lighting… and select light tracer from the drop down list. The default light tracer settings should do.
If you want to show a wireframe version of your model on top of a shaded mesh select the object and click Edit -> Clone. Go into the material editor and create a new material, check the “wire” box under the rollout Shader Basic Parameters. If needs be, click the scale tool, then right click it to bring up the type-in box, scale the wire object up slightly.