Simple Swing Set

I want one just two swings. It can be wood or metal. While he is strong enough to swing hard core. What company should I watch? Websites?

Depending on your price range, there are several good options SwingSetMall.com.

If you want a simple but powerful swing with wood, have a look at this:
http://www.swingsetmall.com/products/Con ...

To save on postage you can buy a kit swing, giving you everything you need to build, but the wood. So you have swings, hardware, brackets, etc.:
http://www.swingsetmall.com/products/Fre ...

There are also options in metal, playsets and more on this site. It depends on what you are looking for, but SwingSetMall.com choice to choose. Just check their swings category:
http://www.swingsetmall.com/categories/S ...

I hope you find what you're looking for!