I know google is hard n' stuff and coming up with phrases to search may put too much strain on your softboiled egg-like cranium, but at least try to search the catalog before starting a thread, m'kay? M'kay.
Okay, since we got that out of the way, here's a breakdown of how tu makez an star sheeb. A 3D, virchuel, deejeetel zdar'shee consists of two components - a hard vinyl model and overlapping multilayer synthetic wool textures. First you build the model from parts you bought at the local hardware store (use nontoxic glue so you don't kill yourself when you end up eating half of it), then crotchet a nice, snug texture for it, so miniature Jean-Luc Picard doesn't freeze in the vacuum of spehs'.
For this advanced pipeline you will need as fallows:
-A generalist 3D graphics program (Blender/Maya/3ds Max).
That's it, really. You can also use sculpting softwares and some texture painting ones to purdy it up in the texture department (you can convert - "bake" - small details like scratches on the model into a texture). 3D Coat/Zbrush, Photoshit/Substance Painter, stuff like that.
You need to learn the basics of the program you intend to use, then do some extra tutorials on box modeling (alternatively hard surface sculpting to turn your lukewarm turd sculpt into a steel-like hard spehs' benis). After this you should pretty much have an idea what do do.
Don't buy anything (untill you're ready to monetize), you can get everything for free one way or another. Look up cgpeers.