Haswell has ultra-low-power sleep states, so theoretically if you were charging a whole bunch of cell phones or whatnot (loading up +3.3V and/or +5V a lot) while the CPU pretty much turned off (thus consuming less power indirectly on +12V than previous CPUs) and all other +12V draws like fans and hard drives spun down, this would crossload some power supplies and move them out of ATX spec. Ignore this.
For load noise levels, Capstone should fit the bill. You probably won't get much more durable under $100. Arguably Seasonic G? Anyhow, Capstone has a 7-year warranty and should be fine.
You don't get the really quiet and durable stuff under $100. If you're more concerned about idle noise levels, some other power supplies might be more suited. But say Corsair RM and Cooler Master VS are not built as well (but really should be quite acceptable... probably; with VS on more steady ground).
Keep in mind that the running the fan harder reduces operating temperatures of the electronics and improves their longevity, so there's a tradeoff for the two things you're looking at. Though really, the fan could be more of a weaker link than the power supply electronics.
edit: if you're a bit more cavalier, actually, forget Corsair RM and Cooler Master VS and even Rosewill Capstone. If you're also willing to drop modular cables, Kingwin Absolute Platinum 550W is available for $100 now:
That's pretty much a fanless unit for your purposes and more. Fan only kicks in for very high loads that you wouldn't hit. And built well, except that running power supplies at ~400W+ fanless is going to stress them, you know. Even if they're 80 plus platinum and not putting out that much heat.Edited by mikeaj - 12/4/13 at 2:32am