The Thermaltake is CPU only
, it seems.
With the Core i7 you will need a single radiator - the Gigabyte 3D Galaxy and TTake 850i radiator is the smallest you can use on a stock i7, so if you want to add VGA into the loop you will need a radiator of at least 240x120mm. You could go for the Gigabyte system to get the VGA cooling, then just enlarge the radiator on it to allow for the increased heat load.
The problem with both of those systems is that they were designed with Pentium 4 and Core 2 Duo processors in mind, which produce less heat than the Core i7.
I would also suggest going through the sticky in this forum on watercooling. There is a lot of information there about the problems people may encounter.