Source: Retail R2 PAL DVD
Audio: English 5.1
Subs: English
Ripped: 2 chan. audio
I will upload the rest once I can stop seeding this, so keep uploading after you finish.
Enjoy!
First disc:
http://thepiratebay.se/tor/3947421/BATTLESTAR_GALACTICA_S3_DISC_1.ISO