So I have two spare cold cathode lights I used to have in one of my computers. I took them out and installed UV cold cathodes. So now I have these two extra blue cold cathodes. I was wondering if anyone knew a simple way to install them under my dash to light up the foot area.

Yeah I used computer CCFLs in my car a while back. There should be two lines going to the inverter, a power and a ground. Hook the power up to a 12v source, and the ground to a ground, turn them on, and voila IIRC. I added a switch in also which is very simple to do.