Just remember that if you plan on rendering on a laptop, you'll not really want it on your lap top. Unless you don't plan on having kids someday. ;) So if you go the laptop route, you'll either have to use a table or desk somewhere or get a big square of wood that'll prevent heat transfer. (Also note that hardback coffee table books might be handy for this as well.)

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Barbequed Pixels?

Your friendly neighborhood Wings3D nut.
Also feel free to browse my freebies at ShareCG.
There might be something worth downloading.