premade kits will never attain as efficient cooling results as a DIY kit or a kit offerred by a specialty manufacturer (such as Danger Den or Swiftech).
The reason why DIY kits are, ideally, the most effective, is because you are not limited to a specific brand of equipment.
Those kits offerred by companies like Danger Den or Swiftech or even Alphacool are excellent kits and do produce excellent results. But, where you might want to use a Danger Den GPU water block, you might use a Swiftech CPU water block in the same loop.
You can cool your chipset effectively with a decent heatsink/fan combo and avoid the inherent restriction to water flow that the NB water block would add to a cooling loop. However, if you do insist on water cooling it, there are effective means to do so.
Here are examples of good equiptment:
Pump:
Swiftech MCP655 12v DC Pump ($77)
http://www.sidewindercomputers.com/swmc12vdcpu.html
Sooo quiet and yet, so powerful. 317gph, 12v standard 4-pin molex connector to your PSU
CPU waterblock:
Swiftech STORM Rev 2 ($80)
http://www.sidewindercomputers.com/swstunhipebl.html
The top of the line CPU waterblock
GPU waterblock:
Acetal MAZE4 GPU ($45)
http://www.dangerdenstore.com/product.php?productid=150&cat=48&page=1
Low restrictive properties to waterflow.
Swiftech MC14 VGA Forged Copper BGA Ramsinks ($17)
http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=196&products_id=3811
For videoram
Northbridge waterblock:
MAZE4 Style Chipset Block ($39)
http://www.dangerdenstore.com/product.php?productid=157&cat=46&page=1
Reservoirs:
Danger Den Single 5 1/4" Bay Reservoir ($30)
http://www.dangerdenstore.com/product.php?productid=52&cat=27&page=1
PrimoChill - Single Floppy Bay Reservoir ($10)
http://www.voyeurmods.com/index.php?action=item&id=1697&prevaction=category&previd=2&prevstart=0
Cyclone 120 External mounted ($33)
http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=318&products_id=20585
Radiators:
Single 120mm
Black Ice Xtreme Radiator ($34)
http://www.dangerdenstore.com/product.php?productid=1&cat=85&page=1
Dual 120mm
Black Ice Xtreme II Radiator ($43)
http://www.dangerdenstore.com/product.php?productid=2&cat=85&page=1
Tubing:
Tygon 1/2in. ID 11/16in. OD Laboratory Tubing #R3603 ($2.25/ft)
http://www.sidewindercomputers.com/ty1idx11odx3.html
Get, at least, ten feet. Best tubing around and you won't find it cheaper anywhere else
Clamps:
Breeze Miniature Hose Clamp 7/16 in. to 25/32 in. (10/#3.60)
to secure the tubing to the fittings
get 20
Kinks:
Swiftech Coolsleeves 625 ($2.60)
http://www.sidewindercomputers.com/swco625.html
helps protect tubing from kinking in tight bends
get 2
Coolant:
Regular
HydrX Extreme-Duty UV Coolant ($3.29)
http://www.sidewindercomputers.com/hyexduco.html
UV Reactive, biological preventative - must mix with distilled water
get 2
OR
Non-conductive
PrimoChill ICE 32oz ($20)
http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=303&products_id=3982
lubricant, non-conductive, corrosive inhibitant, non-toxic, biodegradeable, biological preventative
get 2