PS3 update: good mirror sites?

The internet in China is all sorts of wacky now for a lot of reasons I’m not going to get into. As a result, I keep timing out whenever I try to update my PS3 to 3.6. The official PSN site is going slower than a drunk mule.

Does anyone know of any good mirror sites/torrents for PS3 updates? My google fu brought up a few, but they seemed sort of dodgy.