Hi Leo
there are a couple of ways to go about sci fi, too.
The super clean shiny white of Clarke's 2001 where all ships are pristine white and shiney
the slightly less perfect and somwhat used universe of Trek, or the grungiier used universes of
SW, Aliens and BSG. I love to play in all of these :)
Also, don't forget about (or become intoduced to,as reqiured) the world of Maschinen Krieger, what years ago before we knew any better we referred to as Nazis in Space. Larger kits, made from other recognizable pieces, and very very armor!
here is a great resource for that fun universe:
http://www.maschinenkrueger.com/
hope this all helps
David
Build to please yourself, and don't worry about what others think!
TI 4019 Jolly Roger Squadron, 501st Legion