Another cheaper option you might want to consider are Car LED light strips.
You can get them at around $3 for 2 strips of 24 led lights on ebay, and they're also flexible.
I bought a few of them, but at the moment just can't find the time to hook them up. I just need to connect them to a dioder transformer which I already have, but I'll have to clear a whole cabinetfull of toys to pass the wires at the back