Having a computer very quite is top priority. Doing a comparison between Rain Computers, ADK and PCAudioLabs, The PAL kicks ass again. This box has rubber bushings mounted between the HD and cage (brilliant). Side by side with my other CP's... no comparison. The way PAL have designed their boxes practically eliminates the growling of data storage during tracking. You can hardly hear it. The plastic box its also built in (not the best looking ) is more special then meets the eye. Rain computers claim to fame is their aluminum case design built to disburse heat but it transfers the audio vibrations into the room making it less than acceptable. The AMD win 7 64 ION I have still keeps up to Sequoia 11 but those little things make a big difference for me. Rain and ADK computers are noisy in comparisons. Rain being the worst.