You guys have awful idle temps (and likely lots of wasted power at idle). Must be lazy overclocks. You know overclocking works fine on FX chips with offset voltage (allows voltage drop for low power states), cool-n-quiet (lower power states), C1E and C6 (core power down) all enabled right?
My overclocked FX-6300 rig has basically the same idle power dissipation as it did stock. (usually run it 4.4-4.8ghz depending on my tolerance for noise)