Might be a bit late to the party, but I've got a roughly 1000 pt 6th edition Tyranid force.
Hive Tyrant:
-Bonesabes
-Lash whip and Bonesword (Yes, I know this violates the rules. My friend that I play against does crap like this all the time, so I figure it's fine for me to do it ONCE.)
Tyrannofex:
-Acid Spray
-Electroshock grubs
-Spine salvo
(Two template weapons, one a ranged template (wut) and then a four shot, strength 5 assault weapon. Against guardsmen, this thing is utter rape. Against SM, it's pretty threatening. Did I mention this beastly son of a bitch has 6 toughness, 6 wounds, 2+ save, and regeneration? Because fuck your infantry.)
Warrior brood:
-Scything talons
-One Venom Cannon, one barbed strangler (ssssssh), and then one with rending claws. Three warriors total.
Genestealers with Broodlord:
-10 'stealers, with a broodlord. Fuck your characters.
Termagant posse:
-Roughly 30 termagants
One hormagaunt, one ripper base, three spore mines. And five of those little ground-pucker-orifice thingies that you get with EVERY fucking Tyranid sprue, yet has no discernible usage.
My friends army?
10 man tactical squad with missile launcher, heavy bolter, and flamer.
5 man assault squad, with a plasma pistol. The sergeant has a storm shield and power sword.
'Command squad' of nine marines, with various power weapons (A power axe, power fist, two power swords) an apothecary and maybe something else I forgot. Oh, right, the guy with the power axe is a Captain with artificer armor.
Terminator Chapter Master with Power sword and storm bolter.
To say I outnumber him is a bit of an understatement.