Thank you Smith... for your response. I am still digesting the data, but it sounds very good.
You gain credibility with your Steam comment, as it was one of the first things he tried with his new computer, as it was the breaking point of trying to use his mother's laptop on my wireless network, as it did cause havoc.
We were doing fine with setting up his new computer on my existing wireless network, till he tried to fire up the steam game again, and bingo! we started getting issues that prompted me to make the post.
I think I may use my existing wire to set up the wired local hub in that room, instead of redoing the whole house.
Thanks for the advice. Like I said, I am still digesting it, and will hit that link to explore farther.
Thanks again.