First Thermaltake includes everything you need even if you own a BTX mobo. I found the 400 cm of tubing to be more than enough but thought the amount of coolant was a little low. Considering there was also the same amount in the previous kit, they upped everything else why not the coolant. The quick connects are still being used and make the install much easier. The instruction manual was done much better this time and a novice to water cooling should be able to complete the install without a hitch.
Thermaltake did make several improvements to the previous kit with the thumb screws and longer nuts on the standoffs on the water block and to the water block itself, increasing the tubing size to 3/8" ID, adding a larger pump, liquid tank and the addition of the dual radiator. I still would have liked to see the single radiator evolve to 3/8" with the rest of the kit and a speed control on the dual radiator fans. The pump runs extremely quiet and the liquid tank may be a tight fit in some cases.
Now the improvements have placed the Big Water into a new class of water cooling, it's no longer an entry level cooler. It also allows for more choices for addons in a 3/8" tubing world than 1/4". I wouldn't place the new Big Water in the top tier but if the price holds true the Big Water would certainly be a good choice.
The Big Water 745 will hit retailer shelves around February.