Lego: Space, Life on Mars - 7311 Red Planet Cruiser
I created this a long while back, but never bothered to upload it until now. It was relatively easy build, from what I remember, though the leg segment was kind of tricky.
Brickshelf Files: http://www.brickshelf.com/cgi-bin/gallery.cgi?f=558343.
Constructed in MLCAD / Rendered in LDView.