First of all, we would much appreciate the help and support of all of the paticipants of this site/forum. We used a lot of suggestions in order to assembly this quiet computer.
The main goal is to mount a quiet, low power, with good graphics capability and to be used in a hot country (Brazil).
1- Case/Fans: Antec Solo w/ 2 Nexus 92mm (input)@9V and 1 Nexus 120mm (out) @7V
2- Mobo/Chipset cooler: Asus M2A-VM HDMI w/ Thermalright HR-05
3- CPU/Cooler: AMD 64X2 4600+ 65W/Zalman 9500 w/ Nexus 92 fan mod @12V
4- GPU: Gigabyte 8600GTS Silentpipe3
5- Power Supply: Antec Neo HE 550W
6- HD Western Digital 400GB (SATAII)
7- DVD Writer: Samsung SH-S183 (SATA)
8 -Memory: 2x1GB OCZ Platinum 6400 DDR2-800
9- TV Card: AVerTV Combo PCI-E
c) PSU Duct
We are experiencing an unusual cold day today (12 C). Up to now, anyhing to worry about.
CPU: 30 C (Asus ProbeII)
Mobo: 34 C (Asus Probe II)
GPU: 47 C (RivaTuner)
We considered the final result very good. We can only hear a breeze sound during a complete silent environment during late night. Following the guidelines recommended here really works.
The only part that we would like to install in order to complete the system is the fan control Zalman ZM-MFC2. It is very difficult to find this component.
Once again, we thank you all by the recommendations/suggestions.