 Re: Wireless help???
Your laptop needs to be wi-fi capable. Nowadays, most modern laptop comes with in-built wi-fi so that is not much of a problem.
You also need a wireless router. Wireless router allows you to have wired and wireless connectivity.
Wired is secure but at the expense of mobility.
Wireless provided the mobility but in term of security, it depends on the type of encryption used. Unless, the hacker is so determined to hack into your network otherwise most wireless encryptions are secure enough. 
Desktop: AMD X2 3600+ 2GHz, 3GB RAM, 160GB HDD, 17" LCD display
Laptop: 14" Intel Core 2 Duo (Dell 640m), 7" Intel Celeron (ASUS EEE PC) If it isn't good, let it die. If it doesn't die, make it good. - Ajahn Chah | 
