I may be giving myself a bit too much credit, but I think I predicted this on the show a while back. (I say that in confidence someone will set me straight if I'm wrong.)
Anyway; here's a decent hard drive with a GIG of RAM for cache. Not just memory, either, but DDR2. It's bound to fly. The article is detailed enough to whet your appetite. It sure did mine. Welcome to the new age of storage.