Just came from Costco, where I found an LED Accent Lighting System from Innova Lighting.
It is a 12v kit, with the 12 AC adapter since it's made for indoors, and comes with 4 10" LED strips, encased in some sort of silicone material (with foam sticky tape back) and an assortment of connectors. Each strip has 15 LEDs and has a dual position switch for bright/dim. Can't really see much of a difference in the brightness and for my use, will only use the full 12 volts.
I plan on one on each side of the cockpit, mounted to the 2x2 cross tube, 1 for the trunk and one for the between-the-seats glove box. Even with natural light in the garage, there seems to be plenty of light to assist with belt fastening in the dark.
The whole kit was $30.00
Ordered June 20, 2009, Picked up July 21, 2009. Roller, January 2011. First start, February 2011. Go-cart, March 2011. Legal, August 2012.