The thing you have to remember is that this is an overclockers forum who value quality over cheapness. There's some very decent kits for ~ £120-£150 (Swiftech, Corsair), and perhaps they would be recommended by us, but not ever a ThermalTake kit.
XMS has had experience of ThermalTake watercoling kits and the quality in them is unbelievably low compared to every other make. For $99.95 you get what you pay for = bad quality
At OC3D we pride ourselves in recommending only the quality products that we feel we would want to use, and the Big water does not fall in that category.
Far more effective and far superior value and performance is a decent air cooler - A Scythe Inifinity or Tuniq Tower for example. Whats the point of going to the hassle (and possible danger to components) if you could get a decent and hassle free air cooler for less than the price and basically the same performance? In my opinion: no point at all