A quick google for audio books in English . . .
Improve Your English with Audio Books - this site seems to give you a sample of the book, and supply a transcript of the sample. You choose to purchase the entire book after checking out the samples.
LibriVox - this site has volunteers who are interested in providing free audio books that are in the public domain (that is, books that are no longer protected by copyright, books that are royalty free). Pick a download, and go from there.
English Literature by William Joseph Long - Free mp3 Audio Book Download - not too sure if there is any catch here but I liked what I saw in a brief read of the first page of the website.
Storynory: Free Audio Stories for Kids - childrens stories that come with the written story.
Good luck Raghnar, and welcome to TFP