Have a look at the XSPC Rasa 750 RS240 WaterCooling Kit, from the same place, its £5 cheaper but comes with the Rasa block which is up there with the HF block.
Both kits are good, the Ek's has the slightly thicker rad then the Xspc one, The only problem with the Xspc kit is the pump/bay res is a dual bay one so you may not have the free space, but if you do, its the kit id go for.
If u don't have the space for that bay res, then the EK kit is spot on.