Here you can see what you will need to realize the internet radio by yourself.
||Depending on what you want|
|Raspberry Pi||This is the single-board Computer described in the post before||Approximately 43,89€|
|Micro USB charger||Just a normal charger, like the one for your smart phone||Approximately 9,85€|
|RJ-45 Patch cable (LAN cable)||A normal LAN cable you probably already have one|| Approximately
|Micro SD card||Minimum 4GB|| Approximately
|Wireless USB Adapter||Adapter for the Raspberry Pi to communicate with your WLAN-Router|| Approximately
|Speaker||Speaker with external socket and phone jack|| Approximately
|Multi socket||For easiest handling use one with a toggle switch|| Approximately
Another interesting link is the Raspberry Pi 2 Model B Starter Kit.
Here are a lot of things included that you need for this internet radio.
Full prize without the Computer (because everyone has one): 90,52€
Do not be scared by this high price! Probably you already have most of the items you need at home. I think it is realistic to buy a few items to have a cool internet radio project. Also you can do several other things with a technical device like the Raspberry Pi. Just search a bit for other bloggers and you will find other interesting projects you can build. But now start with your own internet radio!