I have been looking into going with a WC setup for a while now. But i have heard that there isnt much to gain over the HS and fan i have now ( SLK-947U and Vantec Tornado 92mm). I have a good bit of money to spend and more on the way. Can someone Recommend the Absolute best, and medium WC parts? ex. radiator, pump, waterblock, heater core (what do these do???). Thanks