Quote from Bolimomo:
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I use an Antec 300. $60 on Amazon.
http://www.amazon.com/Antec-Three-Hundred-External-Internal/dp/B000GQMHBI
Tiki used a higher end Antec box. They are both big. Leaving a lot of empty space inside the chassis unused (probably would never be used).
Maybe you can shop for a smaller chassis (make sure to have room for 1 hard drive and 1 DVD-RW drive... though most of them would).
Powersupply: Coolmaster or Corsair or Antec. There are others. 600W to 850W should be what you need. I don't think you need any higher.
Extra CPU fan... I tend to think the one comes with the Intel chip is enough unless you overclock your CPU, or you anticipate that the CPU will be busy crunching numbers all day. If you want one, CoolMaster makes pretty good models. But make sure the extra headsink/fans fit inside your chassis.
You can save on a case. I chose to go very quiet and payed up for that.
You can get a case with lots of airflow and set all fans to low to reduce noise and get good cooling. Just check the cpu and mb temps to make sure the fan speeds are doing their job and adjust as needed.
If the case does not have cable routing behind the MB then just make sure you run the cables very neat to increase the airflow.
I previously mentioned for power, I calculated 400 watts for my setup with one video card. I gave it an additional 200 watts for adding 2 more video cards and any future addition. Still have plenty of room to go and that is with 850 watts total p/s.
) this spring and it preforms beyond all my expectations. I can't imagine the speed of these latest Intels.

