To power your computer and monitor it takes about a dollar a day, with no lights. For LCD's its about 30 cents a day.
With LED's, Cold Cathodes, a pretty much fully lit computer costs about 1.45 dollars.
The only neons I have on my computer are on the fan, because the fan with neons was cheaper than the fan without...dont ask me why.
Plus, all those lights are going to heat up your case a good bit.
Neons are just dumb...plain and simple.
If you want the lighting, get a blue laser mouse
dirtbikes and ATV's take up so much less gas than anything else, that was also a dumb statement, considering people are driving around in their hummers.