In order to succesfully broadcast you need only a few simple things. First is a computer that has Windows, Mac, or a Linux operating system installed. Second is a broadband connection. It is required you have a broadband connection to stream properly without any lag or buffering issues.
If you plan on taking your streaming to the next level you could get yourself a mixer and a microphone to add some style and uniqueness to your broadcasts. It would not hurt to have 2 computers if you are going this route. 1 that would handle the music and voice part of the stream and 1 that would handle commercials and sound bytes and such. I would also check out the products over at Spacial.com such as SAM Broadcaster and SAM Vibe.
If you need more assistance please do not hesitate to contact us! We are always here to help.