The kid friendly tools let the kids on your connection in about 2 minutes. Since this is no security at all, you have to think if it's worth keeping the BB for this reason.
As to the second router. Pick the article you like from this google:
http://www.google.com/search?q=how+to+use+a+router+as+a+wap
And please forget about MAC FILTERS. Hiding the SSID, MAC FILTERS are ineffective against the WEP script kiddie tool. So the only effect is more work for you.
Bob

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