Here's the thing about water-cooling. Once you start, and see the gains, it is very hard to stop yourself from expanding your loop. Next thing you know you will want the GPU watercooled, then the Mobo Chipset.
So always buy more then you need...Radiator, Pump and Res.
IF you have the cash to spend then a custom loop is the way to go.
Unless you plan on moving your system around then there is no reason not to use a separate external box dedicated to just housing all the cooling guts. Pump, Res, Radiators all in one external box with just the tubing running into the PC. This makes working on all the parts much easier and removes a lot of internal case clutter.
EK blocks have been really good to me, but only used on GPU's. For CPU I have had good luck with swiftech and heatkiller. Radiators there are a lot to choose from. You need to figure out what can fit where and then figure out what brand.
i7 930 @ 4.2Ghz
GIGABYTE x58 UD7
Kingston HyperX T1 Series 12GB
GIGABYTE 7970 (1280/1800)
OCZ Vertex 2 100GB SSD & VelociRaptor 300GB
Last edited by ZenZimZaliben; Mar 6, 2013 at 03:31 PM.