Attached Link: http://market.renderosity.com/mod/bcs/index.php?ViewProduct=58872&vendor=coflek-gnorg

I decided to go with the Sci-Fi Streets Construction Kit from coflek-gnorg. 

The CodemanStudios Dimetrodon was a close second.
http://market.renderosity.com/mod/bcs/index.php?ViewProduct=59972&vendor=CodemanStudios

Ian Palmer has some $5 M3 Jack Kirby/Japanese SciFi inspired armor sets for people that want to spend no money. I've not bought these, so can't comment on them.
http://market.renderosity.com/mod/bcs/index.php?vendor=IanMPalmer

My visual indexes of Poser content are at http://www.sharecg.com/pf/rgagnon