Wow, that's an expensive case. I think you might have a hard time keeping the noise down due to the 2 60mm fans. The 80mm is easily replaced with a quiet Panaflo, but I don't know of any quiet 60mm fans. Generally, the smaller the fan, the faster it has to turn to move the same air. This is why most people will try to get a case with 120mm intake and exhaust so they can use the Nexus 120mm fans. Perhaps you can modify the case to accept a 120 instead of the 60's. Or maybe a different case will serve you better.
I use a Nexus 4090 PSU in my box. It's very quiet, and has two SATA power connectors. I'm running two SATA drives, one IDE drive, and three optical drives from it. It stays very cool and my system is 100% stable.
You can get Nexus PSUs and fans at www.siliconacoustics.com
. I'm not affiliated with them, I just wanted to let you know since the Nexus fans are rather hard to find in the US.
Hope this helps.