Case Design for Liquid Cooling

[SpuTnicK]

Why there should be an intake air vent or fan?
One or more intake vent or fan equals plenty of dust, no filter can save you from that.
Lets make it clear
There are several major heat sources in the case:
CPU - watercooled
GPU - watercooled
NorthBridge - watercooled
SouthBridge - watercooled
Mosfets - watercooled (if nessassary)
RAM - aircooled or watercooled (if nessassary)
HDDs - aircooled
DVDs - ----------
PSU - aircooled
And that is it.
As for the rest heat amount - there are 3 ways of heat transmission:
1) convection
2) thermal conduction
3) radiative heat exchange.
So I think that using convection with the help of 2 or 3 exaust fans will be enough to cool everything else.
And the psu will be extracting air from bottom rad comartment. Cause its fan will be facing bottom rad, not the mobo