There was links from one of these 'my' sites, i think it was mywii, about a month ago, where if you use firefox you could patch the browser to log into the ps3 network on ur PC.
I did it and atm have GT HD and ridge racer 7 demo's on my PC, waiting to upload to my PS3 when i get it on March 23rd.
It will take a little while to transfer over to my ps3 i guess, but not as long as downloading them with all the aussie's trying to download at the same time.