I recently put LED strips in my cab to backlight my marquee and bezel.
Just buy an LED strip from your local DIY store and then put it in and see how bright it is, then cut the strip to size.
If it's not bright enough you can always do a double loop of lights.
Bit of a warning: get the cheap strips with a rocker switch that come on automatically when power is applied, not the remote control ones, as some of them only only come on when your press the power button on the remote.
I prefer warm lights, but the cool ones look really good for things like Tron or spacey marquess where you want a neon, minimalist sort of vibe.