hi I'm new to the the world of overclocking and modding because I just now got the money to be able to do so and I was just wondering what the differences were between neon light bars and cold cathode light bars and how I would mount them on the front of my case?

Well..CCFL (cold cathode flourescent lights) are better than neon lights because they produce less heat and are commonly much brighter and they are usually mounted on the inside wall or bottom of a case.

Also, CCFLs last much longer on the same power - more efficent!