http://www.frozencpu.com/products/93...namitedata.com
That block supports:
EVGA X58 SLI Classified (141-BL-E760-A1)
EVGA X58 SLI Classified (141-BL-E761-A1)
EVGA X58 SLI Classified (141-BL-E759-A1)
You need to determine exactly what model number board you have, and check the EK configurator
http://www.coolingconfigurator.com/
Pump: you will probably want either a Laing DDC or D5. These are the most common pumps, and are rebranded by a number of water cooling companies. Swiftech rebranded pumps are the most popular. The DDC pumps are MCP350 and MCP355, the D5 pumps are MCP655 and MCP655-B. There are pros/cons to both pumps, so do your research, ask questions, and decide what will work best for you.
CPU block:
I opted to stick with a nickle plated base because it is supposed to help reduce corrosion inherent to the design of the highest performing blocks (impingement plate/microfin design). There is a huge thread about this here:
http://www.realredraider.com/vbulletin/showthread.php?t=11373
I also opted for either a delrin (acetal is the same thing) or copper cpu block cover as opposed to acrylic. The cover is the part with the threads, and arcylic is more prone to crack than delrin or copper.
Obviously, this criteria narrows your choices a lot. For me it ended up being between a Koolance CPU-360 and EK Supreme HK (nickle/acetal). I opted for the EK Supreme HF. The current high end blocks generally perform within less than a degree C of each other and are priced about the same too, so you can base your choice pretty much on aesthetics and personal preference.
Reservoir: Pretty much any reservoir will do the trick, so the deciding factor should really be how well you can work it into your build. For bay reservoirs, just remember that machined Acetal/Delrin is more durable (less prone to leak) than glued acrylic. This goes doubly for res/pump combos because there is more stress on a combo than just a stand alone res. Before you decide on a res/pump combo make sure you research them to find out if there are any known issues.
Of course all of this IMO, and others may have differing opinions...
There is a lot to learn when building your first loop, so I advise a lot of research and asking a lot of questions before buying anything.