The concept of cooling

Building a new big case and addresses the concept of cooling. I propose 2 schemes, I'd like to ask you to rate which of them will appear in terms of better COOLING, dust, noise and technology. I have full solution, as I'll only use cooling efficiency. Want to ask, what would you improve.

So far, I report what the description, but I would like to cool and wanted to apply in the future. Of course, it's just a sketch, the arrows showing the "temperature" are only indicative, I realize the action of turbulence, pressure, humidity-aerodynamic and thermodynamic and other effects. Please, exalted is nothing to integrate and count and the horizon does not want me.

I think you should do tunnel specifically for the GPU than the HDD. Just one fan in front of them.

No maybe some of it is not known, but the tunnel is the cpu for both possibilities, the only HDD-blown over in both possibilities, without the tunnel.

But you wrote GPU! Otherwise, I have a tunnel to the CPU to GPU. Hot fresh air is fresh air!

If you build it from scratch, would have achieved great results. I would like to build a case, but you know...

I know that I wrote GPU, but that was the tunnel and the building of the CPU. My graphics not so high and Passives with AC not pres 50° C. In addition, it is in AGP so it could be very high for it to build something under the PCI slots.