Help with Water Cooling Noob

ok im barely moving to water cooling and im kinda confused about it

i am looking for a water cooling kit i personally prefer external, examples like Aquarius III or Cool Master Aquagate or any other water cooling systems that are good for recommendation.

btw im gonna overclock to so plz help this newbie out i really appriciate if somebody helps me start with water cooing,
i dont know rubbishrubbishrubbishrubbish about it, i barely learned about this four things but cant figure out how everything works

Reservoir
Water Block
Radiator
Pumps

can somebody clarify and make things clear for me because i am very confused sorry about the long post.

http://forums.hexus.net/showthread.php?t=18086