Would you be able to take some more pictures straight on of various parts of your setup?
The reason I ask is that I have an Antec P180 myself and its been surprisingly a bugger to keep it tidy inside. One thing I do need to chage is that I have a 120mm fan in the PSU bay, which blocks the opening to allow power cables straight through into the lower drive bay. In that bay I have 4 HDD's at the moment and so its a bit of a mess. I really need to sort that for a start.
Just interested to see where your wiring has gone for everything else to see if its something I could do