Your Computer's entities and static objects

[DRedshot]

I'm no expert on this but I have tried to make a few models myself! And I have learned a few tips on how to make decent looking specular maps! (Normal maps... not too sure, but there's probably a filter in Gimp for it )

Simply open the diffuse texture, and delete the Blue Channel, so the diffuse should be a yellowy colour.... Now you can add a more textured look, by swapping certain colours with different shades of orange / yellow. If you want a shiny texture, make the brightness high, else lower the brightness a bit! now you can blur the colours together a bit and save! From my experience it looked quite good! Also, you seem more experienced with Gimp than me, I've only just started using it really, so you probably know more tricks than me

Edit: On the Wiki I remember reading something specific about the Red and Green values, I think red increases specular intensity, and Green increases Sharpness / power (not sure about Green though)