Definately cannot say enough good things about the rail distribution Antec has chosen for the TruPower line of supplies.
They have several models. The 430W should handle almost any system. Now, if you have any USB devices requiring a lot of power, you might want to step up to the 480W version.
The TruPower make use of temperature/load controlled fans so and they stay much quieter than virtually any case fan I have come across.