Miniatures Manufacturers

is there a list of starship miniatures manufacturers?

i know about:
* GZG line thru geohex
* starfleet wars by stellar games
* mercury miniatures ???

i am primarily interested in the scale that matches the GZG ships.
does anyone know of web sites, etc. where i can see pictures
of the ships before i buy?

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i am also looking to supplement my 25mm stargrunt minis
with some military droids/robots.  i so not really care for
the legion of steel type.  i am looking more for the likes
of "Terminator"-type war droids.  anyone know of any?
web sites with pics would be most appreciated.

thanks for the help,
david reeves