Hello. We purchased a playset (actually Santa brought it), for our daughter when she was seven (older siblings were ten, eleven, and sixteen at the time). Alot is going to depend on your price range. We went through a company in Haltom City near Fort Worth (not sure where you are). There sets are equivalent to the Rainbow systems, but so much cheaper! They let you pick each piece you want from the base fort to swings, slides, accessories, etc. You can pick each item you want and add to the basic pieces. They also gave discounts for cash payment. The most important thing we learned was, don't have it built or purchase one based just on your childrens ages now. Make sure it is something they can grow with, or at least that there is room on it for you to add larger items. You can replace baby swings with larger swings, or tire swings. They may not be ready for a rock wall, but you could place it in advance, etc. Our children are now nine, thirteen, fourteen, and nineteen, and they ALL still play on it. Even the nineteen year old, when he has friends over, they will sit on the picnic table, or on the platform and just hang out and talk. Hope this helps! Here is the information on the set we got...Backyard Fun Factory 2202 Carson St. Haltom City, TX 76117 ###-###-#### and their website is www.backyardfunfactory.com