If anyone is interested, I came across this new PATA to SATA bridge that looks just small enough that it might be usable in an Apple TV to replace the internal PATA drive with a SATA drive. It would simply go between the SATA drive and connect to the ribbon cable of the Apple TV. Of course, this leads to the possibility of having a 500 gb internal drive for the ATV, and larger when those drives become available. Here are a few unknowns: Will it fit inside the ATV with sufficient clearance so the bottom can be attached? Will it work with the ATV? It provides a 5V line from the 44-pin ribbon, which the eSATA mod doesn't. If I had another Apple TV I'd give this a try. Looks like the only cost would be a new 500 gb drive (<$100) and the bridge ($25 or so with shipping). Anyone willing to give it a try?