I had a standard sized PSU (EVGA 650G 80+ Gold) and the hard drive cage went to within about half of an inch of the cable inputs for the PSU

The cage is literally jamming the plastic contacts on the PSU cables

Despite being smaller, this thing would not fit in the bottom part of the case without removing the hard drive cages

I had to take the cage out, plug everything in, then jam the cage back in

And also, you need to make sure that your PSU is not too long or the cables will be too close to the hard drive cage and push it forward

This made it so that it was impossible to install about half the cables on the PSU because they wouldn't clear the hard drive cage

I had to remove the hard drive cage in order to fit the power supply

The hard drive cages are accessible from the front and sit inside the PSU shroud