<< if you want blue LEDs for you HDD light, then you need special 2.3v ones, cuz i think a m/b will only output about 2.1 volts to the lights, so 5v were barely light up if at all >>
no, just use the radio shack 5v ones. I just dropped mine in and it works fine, no resistors or any messing like that. It's been that way for like 4 months now.