Raspberry Pi B + Cheap WiFi

RaspberryPi B: WiFi: Handy Stuff

[AliExpress] Cheap 150Mbps 5dB Wireless Wifi Adapter (ID 148f:7601 Ralink Technology, Corp.)
http://www.aliexpress.com/item/150Mbps-5dB-Wireless-Wifi-Adapter-Computer-Network-Networking-LAN-Card-802-11-n-g-b-WiFi/32577437677.html

[RaspberryPi] Setting WiFi up via the command line
https://www.raspberrypi.org/documentation/configuration/wireless/wireless-cli.md

[CyperCity] 8 Linux Commands: To Find Out Wireless Network Speed, Signal Strength And Other Information</a> - (my choice is: wavemon)
http://www.cyberciti.biz/tips/linux-find-out-wireless-network-speed-signal-strength.html