I need some help deciding on which drive to add to my HR-20. I picked up both today at Best Buy as I was having trouble deciding on which to own. The Seagate FreeAgent Pro 750GB I paid $199 (pricematched to Costco). The Western Digital Caviar GP 1TB I got on sale for $279.99, but I'll have to add an external enclosure and eSATA cable ($21.99 @ NewEgg for the KINGWIN JT-35E-BK ). It's not just the $100 difference between 750 and 1000 GB of storage (well worth it for the extra 250GB in space IMO), it's the reliability and warranty as well. The Seagate warranty is 5yrs, but I've heard it runs pretty hot. This new Western Digital is only warrantied for 3yrs, but this new technology is supposed to run cooler and with less power (and I've had terrible luck with Western Digital in the past, to the point of swearing them off, but this price of $279 for 1TB was too hard to pass up). I have both sitting here on my kitchen table, undecided on which to use. I guess I could keep both and put the 1TB drive in my HR10-250 HD Tivo as the original drive in that is starting to get slow and is probably failing (although I'll probably get another HR-20 in 6 months to swap for it anyway. Sorry for rambling, I'm just looking for some advice from some other people who have already started using an external SATA drive with their HR20.