If you are feeling like it, I would recommend daisy chaining a wireless router. Then get a few of these. These work on any computer regardless of OS or whether it's a desktop or laptop. The Zydas Wireless USB card is very inexpensive (well, on Ebay) and has served me well over the years.

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Dan Pemberton
Vacaville, CA

Member, First Baptist Church San Luis Obispo
Formerly ABUSA (We left, so I guess that makes us American Baptists Unleashed!)