http://www.solstice-gaming.eu/sc2_replays/850/
I tried to not show my tech in this case and did not build a voidray, which made him pump almost drones only in the beginning... and i think i only won the fight at his 3rd cause he was unable to flank/fiight with his whole army, otherwise i would have been doomed... this is prolly the reason you need that voidray -> to prevent Zerg from droneing like a mad man.
But in the end the game ended up in quite a funny match, i tried to go for carriers... this is the reason i uploaded it... but watch on your own :D