I need a modular ~400W PSU that is no deeper than 5.5"

I am starting a new build and everything seems to work together. I need a PSU that is no deeper than 5.5", if it is black and modular that would save me some additional work as well. It wont need to be a high wattage monster, 300w+ will do. I have been searching but nobody seems to make searching for power supply by depth easy.

http://www.acousticpc.com/silenx_mic..._400w_psu.html
I have used this psu in tight spots

I don't think your going to find any usable PSU of that power rating in that size that's modular.

If you don't mind stepping up to 450W and doing a bit of old school modularizing, the Silverstone ST45SF or the FSP 450-60GHS (looks to be Silverstone's OEM) are both great options.

ocz has the modxsteam pro and stealth 2, they are 2 rail so they are good for low watt cpu and gpu but for cpu only they will be poor.

I will be using an on board GPU for this build.