Blacksmith, who runs the 'Javier at War' blog (well worth checking out, he's recreating the old X Com games with miniatures, a fine project!), has asked me a couple of times where the minis I'm using for Five Parsecs are from.
I've been terribly remiss in not replying; so, just for him and anyone else interested, they are from Games Workshop's old Dark Future range. I used to love the game and had quite a few foot warriors for it, which I've supplemented with a few careful ebay buys (they sometimes turn up for stupid money as well though).
Scale-wise they are a bit of an oddity. Smaller than 'true' 25mm, but slightly bigger than 20mm/1/72.
Here's one compared with an airfix model and Hasslefree's Grant, for comparison.
And here's a few more that were painted up for the last game.
Terrain is mostly printed card (wish my printer was better!) from various sources including: