Thanks!
Just a some novel advice, don't test your PSU mod till its 100% completed. Being lazy will be your downfall. I literally fried 4 cheap PSUs not being careful. I bought a new Thermaltake 430 watt PSU from BestBuy (ouch) and have yet to fry it. I learned not to test it after every small modification to it and only test it once it is fully bolted down in the server PSU case.
All I have left is the fans on the PSU. I have dual 40mm on the back running off fan controller and a high flow 60mm running at 5v in the front.
The Corsair 750 will be a bit of a challenge when it comes to heat dissipation, but I have an idea for it.
P.S. I only had 4/8 HDDs in my RAID. Basically testing the Dell backplane compatibility to the new PSU (which was a success)