what sort of xenos would a legion of astartes fight? just that i want a xenos head for a possible Vulkan to stand on

Well, the most likely two are Orks and Eldar or you could just make something up.
Maybe something from the WFB Lizardman range?

I suppose there is always the possibility of using Genestealer heads, as they were well known at that time. On that note, you could use other Tyranid heads, though I'd suggest some minor converting work to differentiate them from the 40k Tyranids. Hope that helps. :)

yeah thanks guys i was thinking of converting a megarachind for the base falling into lava

Sounds good. Do you have pictures?
What are you going to use for the megarachnid?

i was thinking of a mixing of nid and a vespid

Another thing you could use would be the Bugs from the Starship Troopers board game. I kind of imagined that they'd look similar to the Megarachnid, though a little conversion work would be required on the standard bugs to make them look more tech-organic.

Standard bugs:

http://www.mongoosepublishing.com/miniatur...95&qsSeries=26#

Mantis Bugs:

http://www.mongoosepublishing.com/home/det...062&qsSeries=26

I think the latter may be more suitable to your needs.

One of my old forgotten projects was mixing tau & kroot for a Predator-like species...or should that be PredaTau? :ph43r:

Ciao,
CDR Grendelwulf