Hooking up my power switch/reset switch/LEDs

In most motherboard cables there is a little triangle that marks the positive side. See the picture below:

For reset swtich and power switch, it does not matter.

By electrical convention, red is positive, black is negative. For the others, generally I think colour is positive, white is negative.

For the connections you have listed, you will not damage your system if you connect them up backwards; the lights simply won't work.