After playtesting a few 'nid lists, I have found this one to be very fun at 850, though a bit tedious.
Tyranid Prime - HQ - Adrenal Glands, Regeneration, Poison Sacs, 2x Bonesword, 2x Rending Claws
3x Tyranid Warriors - Bonesword/lashwhip, Deathspitters x2, Venom Cannon x1, Adrenal Glands
3x Tyranid Warriors - Second verse, same as the first
20x Hormagaunts - Adrenal Glands
20x Hormagaunts - Adrenal Glands
10x Termagants - Either standard weapon or Spike Rifles x9, 1x Strangleweb. (I forget if I have 10 pts left over for the spike rifles.)
There we go. 57 Models with which to gnaw on your tasty, tasty flesh. Yes, you. Who else would I be talking to?
Subject: Slime coating 850 list - 'Nid mania in 'Nidsylvania 
28th March 2010, 11:31 pm