You might try Ebay, Craigslist, etc. for an older style 80GB version that plays SACD and DVD-A. However, personally, I am very hesitant to purchase a used game console online. In fact I don't recommend it at all but put it out there if you are brave.
It's actually only the 60 GB version which supported SACDs. The PS3 never played DVD-Audio. The 80 GB dropped SACD support, and went to a half-software solution for PS2 emulation. New 60 GB PS3s routinely go for over $900, they're that sought after. Even the used ones fetch a good price. Probably not worth it, although I do enjoy my PS3 for SACD, and DV-79AVi for DVD-A.
