We have the PBK wall system (but also a big playroom) with baskets. Totally would have gone IKEA if it had been an option at the time though. The PBK is nice, great for organization, and looks good, but it scratches easily and is overpriced IMO. The IKEA always looks just as good for less. We put bigger stuff on top of the shelves or on the train table (rotating). I keep the lego and playmobil in the boys' rooms though as we have a new baby coming and I want the little pieces out of the way.
In our family room I keep baskets of toys, but we have built ins with doors on them.
Mama to my boys (04,07,11)