may i make a small suggestion? if you go and isolate your PSU aswell, run a "plank" across the top and isolate the psu and the wires, giving you more room to hide wires and pretty up the case, you will enjoy not seeing your psu, theres plety of area for it to get enough air circulation, and it gives you more area for wires without seeing them, naturally cut your plexi off overtop of the psu cage..