THX1138 - cheers for the info, it should help lots in making me understand all these extra areas. I guess the color map is the one I've been working on?
Swankymonkey - hehe, good idea, terminator 2 style I think
I'm quite happy with the foot texture at the moment though it needs cleaning up and sharpening a bit. Maybe this specular map thing will help?
Dae - good point about 4 256 maps, its all a little more complicated than I thought I think I'll try and keep the arm+eye+foot textures a similar size as they are detailed and 'try' and free up a couple of 256x256 areas so that I can get the specular (and normal?) map on. The head isn't particularly detailed so can be reduced and moved.
Would it be a good idea to mix the (color?) maps for both the models or are they best kept separate? I'm guessing separate but I could free some space up on the samurai (color?) map.