how about a particle type starfield.
a bunch of surfaces , the number of which depends on detail level.
fling them out only infront of the camera. rotate them for twinkle , and color / texture them for effect .
You can move through them at slow speed or fast. or move them.
having a few welltextured plains infront of the camera will work well depending on detail you need.
If it is "funscale" and you want to feel like fast moving through a star field then create a cone and point the tip away from the camera and texture it with a basic random star/dot pattern. then make shure you scroll teh UV coords of the texture on the cone object .
use:
SCROLL OBJECT TEXTURE Object Number, X, Y
you will get a fast moving starfield right up to warp tunnel effect. and if you ghost the whole thing and you have a good sky sphere with good detail it will look sweet . add an extra non ghosted cone outside the close one to gove movement depth to the effect .
and use sky spheres for the far off details.
where you want nebule(sp) make a slightly smaller sky sphere (ghost this object) and have companion textures with just the bright parts of the nebule . as you ship moves arround teh nebule will look cool as parts of it go in and out of alignement with the main sky sphere.
go look at the "real stuff" , heck some of it is not copywright and you can use it . but any how look at the real stuff and use it to make your model of space .
http://antwrp.gsfc.nasa.gov/apod/archivepix.html
Old coder, returning to DB (DBP)