2. Power switch is unneeded. Short out connection with screwdriver, then mod BIOS to start automatically on power up, then you can use the switch on the back of the power supply.
when you say short out , you mean the power pins in the motherboard? i.e. could I use a jumper and leave it there? I always use something metallic to power it on, but if I could leave a jumper there, it would be easier