To set up a wireless network, purchase an 802.11b or 802.11a wireless network card for around $50, with options for PCMCIA for laptops or PCI for desktops. The newer 802.11g standard offers faster speeds at a higher cost. A base station, hub, or router is also necessary, typically priced at about $100. These devices support broadband internet and provide satisfactory speeds. Linksys is recommended for routers, and USB network adapters are also beneficial. It's crucial to secure your wireless network, as many devices come preconfigured to be open, which can lead to unauthorized access.