I would recommend against the HomeFree system that Dulanic suggested (no offense, Dulanic) mostly because of the low-bandwidth, the fact that they aren't that much cheaper than the 802.11b 11Mb wireless setups, and lastly, they are very hard to find nowadays (the Diamond store doesn't sell them, they aren't on Pricewatch, etc).
The way that I would recommend is getting an 802.11b setup - either peer-to-peer or device to base-station. Peer to peer uses two 802.11b cards - one in the laptop and one in a desktop. Device to base-station uses a stand-alone 802.11b base station and a 802.11b card.
Of the systems, I personally divide the two into consumer and business classifications. Either will work fine for general computing around the home, but I prefer the business class (the ranges tend to be better). One solution which is kinda cool, very reasonably priced ($250 for the base-station and $130 for the card(s)) and you will end up with a business class system, but involves 'hacking' equipment is to modify an Apple Airport (which is a remarked Lucent Orinoco business-class setup) to work with Windows. PracticallyNetworkedHome.com has an article about this. PM if you need more details.
This is a thread that I started about my experiences with Lucent Orinoco equipment.
I'm using mine with @Home and a Linksys BEFSR41 router.
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