I have always been a Flashlight nut. The first time I saw a screwdriver with a built in flashlight I had to have it. They can be really handy, often when I am using a screwdriver the lighting is not very good and a little extra directed where I am working can be handy. There are a lot more tools now that come with built in lights. Many battery operated drills have built in lights on them. Sears has some wire cutters and pliers with built in lights. They have come out with a series of lighted tools.
Craftsman has Linesman Pliers and Wire Cutters with build in lights
These two tools the Needle Nose Pliers and the Side Cutters both have built in Lights.
Here are the Craftsman Side Cutters with built in Flaslight.
These are not just Gadget Tools if you have some and use them a couple of times you will wonder how you ever got along with out them. they can be really handy in tight areas where you cannot see very well.