Two PSU's and one big board

[Daibido1123]

I'm looking for a case or to mod a case to have space or a slot for a second PSU, meaning a case that can have two power supplies for power to all of the GPU's and computer components. Rigging both PSU's to work in sync will be not the problem, finding a case that can fit them and the motherboard form factor I'm going to use is a problem. I'm looking at the EVGA SR-2 or 4-Way SLI Classified, so either an HPTX or XL-ATX with a 4-way SLI set up, so I will need two PSU's to power all of this. So are there any cases other than Mountain Mod that can hold either of these motherboards and two power supplies, or can be modded to hold two power supplies?

 

[kmote]

Don't get the wrong idea, HPTX and XL-ATX are just made up. I would strongly recommend avoiding boards which are not standards compliant or you will be stuck purchasing products endorsed by one company or another.