Upon watching a number of (very nice) screenshots posted by people around here, I noticed that most don't feature lighting of the area.
I'd like to take the opportunity to remind that lighting of textured objects is indeed possible, and highly recommended to make your age come to life more.
After you've textured your material, you can use the "ambient" slider in the blender material tab to define the ratio between unlit and lit colors (setting the ambient slider to 1.0 makes the texture fully lit always, while setting it to 0.0 makes viewing it fully dependant on lighting.
To make an object lit by a light, you need to add the following logic property:
string lights00X = [Name of light]
Where you replace X by any number from 0 to 7 (in order of course).
I know that this process is still a little dodgy, and might not always work in the way it is supposed to. My guess at the moment is that it is related to blender somehow.