Jen of IHeart Organizing used a Home Depot stair tread cap and riser kit to transform the look of her staircase. (New wainscoting and paint, helped, too, of course.) See the staircase makeover reveal (Entry Step Basement Stairs)
Basement-Great tutorial on how to replace carpet on staircases and then install new stair treads. at a cheap cost rather than buying them premade from some website thats waaayyy more expensive. exactly the info I was looking for!