Yeah, doing them on the sides should work, not sure how well it will light up things. Doing them in the bottom, it helps hide the led so it couldn't be a distraction.
And I got my leds off ebay. They are prewired and already have resistors
TeamFOCALIZE!// HATCH NATION #45// October '12 ROTM
Track build has begun.
slow and steady.. but its going