Smoke's models

[Traggey]

Sure you can! Well, seeing as you're a maya user, you'd render out an AO map from Maya itself, google it, you'll find all the info you'll need! - Creating an Ambient Occlusion map in maya

A specular map is something you can create in any image editing software, basicly what you'll want to do is to make a black and white verision of your texture ( Specular maps can be coloured aswell but lets start simple with a black and white one ) Now you're going to want to make every area on your texture that you want to be shiny, white. And all the areas that won't be shiny, black. Grey for somewhere in between, the more white the image is, the more shiny it will be. Hope that helps!

So I just have to take an brush tool and paint everything black or white? And won't it ruin the texture?

No it won't ruin the texture, you save it out as a seperate file, you just want to make sure to use the same UV layout so that you can paint the correct objects white/black/gray/whatever