ZvX need some help!

Hey guys!
First; awesome forum is awesome..

So, my problem!
Recently decided to start playing again, but i need some help doing so and hopefully there's some kind souls out there..
I used to play Zerg on "higher" levels before quitting, i.e. diamond S1-2 and master once it came live. Feeling kind of lost right now and would really appreciate some advice on where to look for some nice replays, i need at least 1 good build for each match up. So if someone could recommend 1-2 replays from each one that would be awesome! Preferred if its from the same player, that is, when he plays ZvT,ZvZ and ZvP..

Cheers in advance and hope someone could help me out!