Salty, if there are enough funds and will, try a flat one (SP31/SP35)! You'll need a 208V/240V circuit being able to deliver ~16Amps constant for optimal performance though. They run on 110V if necessary, with double the Amps, however the hash-rate is a little lower due to heat loss everywhere in the power supply chain. The good part is that the rack version comes with server grade PSUs and you won't need to paperclip anything.
The modified MinePeon interface you liked, is present on ALL miners coming from SPT and the "learning curve" jumping from one version to another is almost like a farmland horizon ..
There are only minor changes to the ASIC page depending on the configuration, everything else looking identical.
I'm considering purchasing a SP35, power is indeed my concern. I upgraded a few of my breakers to 40 Amp, but they are still 120V. I'm thinking about converting a few receptacles over to 240V but I'd have to measure my house's total load. I've got a space with two receptacles on two different breakers both with with 40Amps and 120V. Sadly its too near my living space, so I'd have to find a near noiseless solution if I wanted to use that spot. I've got another spot out of the way that is a single receptacle 120V and 40 Amps where I could place some hardware, but I think I might change it to 240V and 20A for situations like these.
Whats the approx decibel readout on the SP31/35?
Its about as loud as the SP20- but a higher pitch. 80mm vs 120MM fans