I found my baskets at World Market years back, but anywhere that has similar baskets in different sizes will work. I've seen them at Ikea, Container Store, Garden Ridge, Pier 1, TJMaxx, etc. At first it seemed like an expensive project, but the most expensive one was $15.99 (total under $200 with my coupon of course :). One piece of furniture would have cost me more and this has been the best project I have ever done in my house to solve a problem!
For me it also helped lighten up the wall color-wise.