oh, damn I'm on wrong PC, art PC has all my colelcted tutorials so I can't reference URLs etc at moment, sorry.

for PS starfields, Greg martin ?? has a fantastic pdf on  making starfields and space scapes, best there is, IMHO.
this is starfield one form a quick Googlefu :
http://gallery.artofgregmartin.com/tuts_arts/making_a_star_field.html

:)

"I'd rather be a Fool who believes in Dragons, Than a King who believes in Nothing!" www.silverblades-suitcase.com
Free tutorials, Vue & Bryce materials, Bryce Skies, models, D&D items, stories.
Tutorials on Poser imports to Vue/Bryce, Postwork, Vue rendering/lighting, etc etc!