1. Build sig box in a crappy 0.6mm steel case with Intel stock HSF, 92mm exhaust, and 80mm LOUD intake.
2. Swap intake for some random quieter fan.
3. Swap intake again.
4. Get the Zalman HSF.
5. Swap intake AGAIN, as I can now hear it over the CPU fan.
6. Give up and remove the intake fan.
7. Swap exhaust.
8. Swap exhaust again.
9. Swap exhaust AGAIN.
10. Decouple the HDDs on Blue Ice on the case floor.
11. Build a PSU duct to improve PSU temps.
12. Buy my current aluminium case.
13. Spend all night after I get it, building silencing solutions.
14. Finally go to sleep.
15. Suspend an 80mm fan in front of the HDDs, because one of them is pushing 40°C.
Anticipated near-future steps:
Line the case with foam.
5v mod my intake fan.
I've spent about $90 total, only about $35 not including the case because that purchase's primary purpose was not silencing.
WIP Desktop: DFI R100 industrial PC case, DH61AG, i3-2100, 8GB DDR3, 500GB 2.5" HDD, Linux Mint 12
Laptop: HP tc4400, Core 2 Duo T7200, 3.5GB DDR2, 160GB Scorpio Blue, Ubuntu 11.04