The effect of the habitat on Wireless performance is so important, that other people experience is not as credible as with other Network Components.
The way I see it:
Wireless is depending heavily on the environment. I.e. The distance of the Client from the Base station (Wireless Router or Access Point), and the nature of the obstructions surrounding the installation.
One or two walls, and 20-40' all of them should work OK. More walls, longer distance, and or
noisy RF environment, you will need the "Upper End" of the Entry level Wireless Hardware.[/b]
If you go for broke you buy the inexpensive of the week at a Mega store (on Sale Rebate etc.). Install, and try if it covers your environment.
Does not work return. The Wireless manufactures are not stating distance in terms of real life, thus buying a set, and returning due to lack of coverage, makes sense.
In case El Cheappo does not work for you.
For the Laptop I would get the Orinoco Gold Client Card.
Example:
ORINOCO GOLD PCCARD PCMCIA 802.11B CLIENT W/128 BIT ENCRYPTION
For a moderate price the Linksys WAP11 is good choice.
Linksys WAP11
For real Entry level Power:
ORINOCO AP-200 LOW COST ACCESS POINT FOR HOME OR SOHO OFFICE
For Wireless Router I would go with the SMC Barricade, or Netgear.
If the Entry Level not suffices I would look into the Cisco Wireless. It is a leap in performance as well as the amount of money.
Primer to the Topic here:
AnandTech - FAQ. What do I need for wireless Networking?