They detail all the parts you need in the page you pulled that image from
Wasserkühlung (Water cooling)
EK Water Blocks EK-Supreme LT AMD Acetal Top - CPU Block
EK Water Blocks EK-FC7970 - GPU Block
EK Water Blocks EK-DCP 4.0 - Pump
EK Water Blocks EK-Multioption RES 250 - Tube reservoir
Alphacool NexXxoS Xtreme III 360 Radiator Rev.2 - The giant radiator at the bottom
Noiseblocker NB-BlackSilentPRO PL-PS 3x - the fans on the radiator
Alphacool Heatmaster II - fan and pump controller, kind of unnecessary
Aquacomputer Durchflusssensor "high flow" G1/4 - flow sensor, unnecessary
13/10 Anschlüsse - fittings
Masterkleer Schlauch PVC 12,7/9,5mm - tubing