ok this may work on alot of newbies. ok what u do is send ur drones to mine then when u get enough minerals make a spawning pool. while ur spawing poll is getting ready send a drone to find the oppenent's base when u find it make that drone build an Extractor on their guyser (if they r getting gas already u may be screwed) they will most likely attack it with their drones, scvs, probes giving u time to get zerglings when u get ur zerglings send them in and kill the base... they wont be able to get minerals for defense or offense because they r attacking the extractor. and that should get u the win =)

CreepColony's Opinion: This will work if you can find your opponent quickly.