Quote:The above two suggestions were good units at good prices. The Capstone is temporarily sold out though.
Seasonic X650 linked above is at $100 now, a pretty good deal. It's fully modular (I assume that's not a problem), overall high quality all around, with a high-quality fan with decent fan control for very low noise through much of the range.
Might sell out soon too.
If you have no regard for cost (suggesting TX-M at the start would be an odd choice, considering...), and are looking for slightly higher quality or lower noise at significantly higher prices than the X650, maybe the new Seasonic Platinum or Kingwin Lazer Platinum:
The Seasonic is just released and is more of an unknown, though a recent hardwaresecrets review of the 520W fanless indicates that again, this is probably some high-end Seasonic you can rely on. Some might say that the Kingwin's very long-term reliability is compromised slightly by being so quiet, hardly ever running the fan.
I'd just get the X650, honestly.