What are some Quick Key Terms and Basic WLAN Information:

A Wireless LAN set-up is comprised of a Wireless LAN Access Point and a Wireless LAN card.
802.11 (b, a, g) refers to the radio signaling frequency that the Wireless LAN Access Point and Wireless LAN card communicate on. Each frequency can support a maximum bandwidth level. For example, 802.11b offers up to 11 Mbps of bandwidth and 802.11a/g offer up to 54 Mbps. 802.11a offers a broader spectrum (5GHz) which allows it to penetrate walls and other obstructions.
The SSID is the alphanumeric character that identifies the WLAN Access Point (aka your home network). The SSID information is required when configuring your WLAN card to talk to the WLAN Access Point.
WEP and WPA (WPA-2 latest version) are encryption methods that encrypt and secure the data transmission to/from your WLAN card to the WLAN access point. WPA-2 is the preferred method because it utilizes dynamic keys rather than static keys which make it harder to crack the encryption key. WPA and WEP are next as alternatives.
MAC address is a unique identifier for your Wireless LAN card. It is a 12 digit HEX number that identifies the vendor who built the card and the card itself. The MAC address is required when configuring your WLAN AP to permit access only to your WLAN card.