A student told me she recently found a radio station from Taiwan, which could help her getting used to the sound of Mandarin.
I tried out this radio station myself, and have to say that I truly like its programmes.
A full transcript of the conversation is also on the front page, with Chinese traditional text, Pinyin, and English translation of the Chinese speech.
It's a good place to go if you want to hear normal conversations in Mandarin (at a good speed; not dreadfully slow).
However, if you are an absolute beginner, you might find the conversation difficult (at this stage), but you might be able to pick up a few Chinese characters that you've come across. Hopefully you'll be able to understand more as you make progress.
For my old OU students (L197 module) , the Chinese programme would be suitable for you to keep up with your learning, so that you keep your memory fresh and continue to be surrounded by the speech of Mandarin.