|Unless you plan on overclocking to the extreme, water cooling is a waste of money. |
"where should I attach the push/pull fans for power?"
Push/pull fans? The cooler comes with one large fan for the radiator. Judging from the plug, it connects to the motherboard where a conventional HSF would normally connect. If you're talking about case cooling fans, they're usually connected to the board as well. All you should need is one rear exhaust fan, no side fans, front intake fan is optional & generally unnecessary.
"I have a newly purchased Cooler Master ATCS 840"
Cases with bottom mount power supplies are a poor choice.
The Problem of Bottom-Mounted Power