Free Buddhist Audio
Free Buddhist Audio is a free online service where anyone can gain acces to the sound and text archives of the Triratna Buddhist Order. It also where you'll find community users from all over the world uploading their own archives. There is a wide range of talks, interviews, seminars, and question-and-answer sessions from the early 1960s to the present day, including an increasing number in languages other than English.
Here are some audio downloads on meditation to get you started:
What Meditation Really Is
by Sangharakshita
Getting Started in Meditation
a series of talks by Kamalashila
Body Scan Meditation
by Vidyamala
Change Your Mind - Body Awareness And Relaxation
by Paramananda
Learning the Metta Bhavana
by Kavyasiddhi
Who Hates the Metta Bhavana
a series of talks by Jnanavaca
The Just Sitting Practice - An Introduction
by Subhuti
Becoming Real - Meditation as a Gateway to Wisdom
by Dayanandi
12 Minutes On Intention In Meditation
by Bodhilila