i am Going to be setting up a water cooling loop for my computer
Intel® Core™ i7-3770K Processor
16 gigs kingston ram 2 x 8 gigs
asus z77 sabertooth motherboard
corsair gaming seris 700 watts power supply
1 120 gig ssd
6 1 tb hdd
evga gtx 660
and im hoping to cool it with these
1345 EK Supreme LTX Intel CPU Liquid Cooling Block - Acrylic CSQ (EK-Supreme LTX CSQ) $45.99
Yes, that would do well. I'm assuming the pump is also a reservoir? As for coolant and additive, just go with distilled water (you can find it almost anywhere) and KillCoil (silver coil) or Biocide (additive) to make sure nothing grows in there.
Just add a reservoir (or T-Line) to the loop and your good to go.
Though I question if water-cooling a GTX660 is worth it. I would hold out for a better card before you sink $100 into a water-cooling block.
For coolant, plain Distilled Water is best. Theres no point in buying "premium" Distilled as one it enters the loop its all the same anyway, so what you can buy off the shelf at your supermarket is fine.
Throw in a Killcoil or some Biocide (Deadwater and PT-Nuke are the popular ones) to stop anything from growing in the loop.