Sounds like the 3700BQE is the case for me.
Proposed system is follows:
Case - 3700 BQE
PSU - Antec Phantom
CPU Cooler - Thermalright XP120
Fans - 120 mm x 3 - Panaflo or Nexus
HD - Zalmann ZMCH2 - Look to rip out the current drive cage and make a custom cage. Probably also replace the current Seagate with Samsung drives.
Acoustipack Damping - I will see how all these parts go first, and if I want it quieter then I will get it.
Note: For those of you in Australia (like myself) www.scorptec.com.au
has the 3700BQE available with NO PSU. They also stock the Antec Phantom if you are after that combination.