I finally got back to gold league.
I had some pretty nice games yesterday, but after hitting gold, I got cheesed more than when I was in bronze league. ;D It is obvious that I need to refine my builds more, specially the timings and scouting. From economy standpoint I seem to be doing ok, and I recognise the most common builds and cheeses.
Next step, platinum. It may take few months though, and Heart of the Swarm is upon us then.