We have 2 of the Expedit 5x5 in the playroom. We have 10 of the Lekman plastic red boxes. I am not sure exactly what you will be putting in them in regards to how heavy they will get. I have split each activity into one i.e. painting, playdoh, sports, music & then there are a few for craft. I honestly wish I had picked up a few of the weaved baskets & once the Ikea opens in Clayton I will pop over as the lekman just don't seem sturdy & every time I pull one out I am worried that the stuff will fall through. If the things you want it for are light then the Lekman are good.

The bookshelves are great it keeps the playroom clean & we've always got somewhere to put my scrap booking as well lol. Have fun at Ikea ;-)