Mark noticed that Amazon is now carrying the 500GB eSATA Western Digital My DVR Expander, the only drive currently approved for use with the TiVo Series3 and the TiVo HD, in fact the only drive that works with the TiVo HD without hacking. It looks like Amazon started stocking it on April 30th. The $192.23 price is better than the full $199.99 MSRP that TiVo.com sells them for, but not the lowest price available online, for example, Buy.com has it for $172.99. I use one of these with my Series3 and it works great. I’ve also updated the site store.