My personal experience is most preassembled water cooling kits or packages are not that great.
Most kits that fit in a case have fans and dont really keep anything cooler than a good air setup or much quieter either as they dont have enough coolant etc. I use only the best water blocks,tubing, pumps. All in a design that eliminates components from your pc case(no more crowding and worries about the resevoir right in your case) itself and moves it to a nice unit that functions as a stand. While providing visual appeal it also is very quiet!
I can personally build u a rig which will not only cool your pc but turn heads as well..I hand lap each component both surfaces, custom dye, extra tubing drain plug and thermal/ flow monitor included, not to mention detailed instructions on care and use of your system, limited support via email/telephone.
Each unit is custom built to your specs
Are you interested in starting from scratch or modding your current setup?
Her is a pic in high res of my current rig. Keep in mind this takes a lot of work !
Water cooled beast!
This comp uses a p42.8e 1mb cache.. most with stock air talk about temps in the 50 celcius range for this chip..
This rig keeps it at 19 degrees celcius, 5 degrees at fresh boot! AND its OC'd to 3.6 GHZ!!!
I have run it at 3.9 stable only the cpu holds this rig bak as it has pc4200.
I can only help out if your located in the greater 48 !