Apple OS X 10.5.6 Leopard Retail for Mac

I used OSX Leopard before OSX Snow Leopard. I really like that cosmetic differences between the two. Before Leopard, OSX had a basic look. Leopard changed that all. Leopard features a glass-like dock. This made it feel more modern to me. I think it's also nice that Leopard can run on PowerPC Macs. So even Macs that aren't Intel can run on Leopard. There are just so many features that Leopard includes that the previous operating systems didn't include. Like I stated before, it's mainly cosmetic differences. I would highly recommend this operating system to anyone who is testing out a Mac, or any one who is running a lower operation system. The main reason is because many programs now need at least Mac OSX 10.5, Leopard to run.