Kuchar

Can anyone recommend a good source for obtaining a comprehensive service manual? I've seen some CDs listed on eBay, but I didn't know if there were better options on the market.

I own a 2004 530i (mfg 02/04) and I'm coming up on 60k & will need to do a brake job soon. I'd like to perform the work myself if possible. This is my first BMW but I've changed brakes on other cars in the past and feel comfortable taking on the job w/ this car if I can find a manual that can step me thru the process.

Thanks all!
Kuchar