I have recently purchased a Raspberry Pi 2 so I thought write a tutorial of setting up the Raspberry Pi 2 to run Raspbian.
You can use Raspberry Pi as a server, audio/video streaming box, etc. I would write some more tutorials about Raspberry Pi in future.
Hardware You Need
Raspberry Pi 2 Model B
The US$35 computer powered by 900 MHz quad-core ARM Cortex-A7 processor that is mated to 1GB of RAM.
Micro SD card
The micro SD card is need for running operating systems and for storage space. 8GB or greater of storage capacity is recommended.
5V micro USB power supply (2 Amp)
You may use handphone/tablet micro USB charger powering Raspberry Pi. 2 Amp power supply would be ideal as the power requirement increases when peripherals are connected.
With NOOBS operating system installer, Internet is needed to download third party operating system images.
Keyboard and Mouse
Any keyboard and mouse should work. The Logitech mk270r works flawlessly for me. You may go here to check compatibility.
Just go for a standard HDMI cable. Don't waste your money to buy expensive HDMI cable.
You need it to configure settings for your Raspberry Pi 2.
Important: Please check compatibility here. I have no issue using D-Link DWA-125 (H/W Ver: A1).
Raspberry Pi Case
a case with Lego bricks.