http://www.tivocommunity.com/tivo-vb/showthread.php?t=350510
might help with a lot of your concerns.
easily unofficially expand with eSata with the S3, no so much with the HD, but the HD is expandable.
might help with a lot of your concerns.
easily unofficially expand with eSata with the S3, no so much with the HD, but the HD is expandable.