Look for offerings from Linksys, Netgear D-Link, plenty of posts in this forum on all of these. They are all quite easy to set up in default.
Note that if you are only using the lappy, and have no other computers to network in your house, you only need the basic 802.11b standard kit, as the wireless network would still work faster than any current cable or ADSL broadband connection could supprt.
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STB = Set Top Box (as you posted in the title to this thread)

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Oh and I forgot my manners

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