I heard from one of the members of Techspot about the term Watercooling, and when I asked a technican, he told me that in our country it is not available.I have a lot of questions: 1-What is watercooling? 2-How much effective it is (more or less than the fans)? 3-Where (in a case) do we place the watercooling? 4-How much $$ it costs? Thanks for the help!