OK now i will educate u all
right now find your local MAPLINS its a elecrical store that sells electrical components and pc parts.
now go in and ask to be pointed in the direction of the COLD CATHODE LIGHTS now that is a cold cathode i here u ask well they are basically the same as neons BUT u get them in 12" lengths and they are about 3mm in diameter and come in a small plastic tube u dont have to keep em in the tube its just there for protection.
now compared to a neon tube these produce summit like 90% more light they cost like 8 quid and are much better than neons because of there size and the amount of light they give out they come with an invertor that u connect to your 12v and they shine sooo much they are really good and extremely small u can get them in 6" vertions too believe me MUCH better than neons.
MaLicE
oh u can get them in blue, green, yellow, pinkish red, white, and black (ultraviolet) and i think there may be more colours.
you wont regret it