Originally posted by Nubius
It's YOUR case dude...you put it where you can fit it into or mod it into. There is no set place for these things.
Very true. Most mid-size case owners will find themselves having to mod their case if they use a reservoir. Then again, if you use a T-line, you will have to mod your case anyway. It's as simple as drilling a hole in the top though, no big deal.
You can completely ditch mapping out your system like me if you have a full-size tower. My case is so big that planning it out would be a gigantic waste of time.
Keep in mind that your case isn't setup FOR a water cooling system. Your mother board is for the water blocks. Your case won't have specific mountings to put your radiator or pump or anything. You simply place it where it sees fit.
If you need a generic setup idea, throw your pump and radiator somewhere at the bottom (below the motherboard if applicable).
As for your noise question, it depends on the size of the radiator/heatercore. Some will require more fans than others. A double 120mm radiator will obviously generate as much noise as two 120mm fans. However, some pumps seem to generate a lot of noise. I heard that the Danger Den D4 pump is insanely loud. The Swiftech MCP650 pump outputs around 34 dBA. I really don't know if that's loud or not; you tell me.