Sharing bandwidth easily

If I have a basic cable modem home router setup, and two people in the home are downloading, do I need to set up a Simple Queue to share the bandwidth equally, or will TCP protocol just do this naturally for me anyway?

This will help you: http://forum.mikrotik.com/t/using-routeros-to-qos-your-network-2020-edition/66683/1

Thank you DarkNate best person on forum.