make sure you do things in a good order, such as attaching your CPU cooler before putting the mobo in the case. I would put in the harddrive(s), disk reader, and fans before the MOBO and PSU. On the note of static electricity at the very least dont work on carpet and dont wear only socks, touching something metal such as your case or PSU should get rid of any static charge. (i've built multiple computer and i have yet to kill any component 😀 )