Have a look at the water cooling guide in the same section: Water Cooling guide
. As for blocks, I would say XSPC, they have the lowest tested restriction rate of all cpu blocks, and the raistorm fits on several different cpu platforms,so its a great value for money. Secondly I would go for Swiftec, they have excellent warranties and low restrictive blocks, but first choice would still be XSPC. I don't know if you purchased anything yet, but for a 650d chassis I would get the Swiftec 355 pump with pump top, on that I would ad a 140 mm reservoir from EKWB, or if you can fit it a 250mm, connected to the raystorm XSPC cpu block,running 7/16 tubing on 1/2x3/4" fittings will give a better seal, or get same size tubing as your fittings but make sure they are compression fittings. Then for rad I would go for the XSPC if you plan on getting lowed high rpm fans. or get the Swiftec/Koolance v series if you want low rpm fans. Then tubing must be primo chill-primo flex, get the best! Color is your choice. And I would use distilled water wither a silver kill coil, but if you want colored liquid go for primo chill.