I've just been sent a link to a "free" bundle of Game Audio (10+GB worth!) kindly donated by Sonnis as they couldn't attend GDC.
It looks like they are having a major overload of people downloading and are looking for someone to help host it for them:
UPDATE: This library is becoming increasingly popular and is getting shared thousands of times with people all over the world. Delivery costs are running into the thousands and hundreds of people are hitting refresh every couple of seconds… This unprecedented amount of traffic has caused quite a few headaches unfortunately. As soon as we open up the download slots – 2 minutes later – they’re gone. We wanted to make this library entirely-free as our way of giving back to the community… If you would like to help us out with hosting the files, it would be greatly appreciated.
http://www.sonniss.com/sound-effects/free-download-game-audio/
This is only available until early April, and I don't know what the licencing restrictions are (if any??).
Hope this helps someone.
Regards
Shando