I've upgraded the hard drive in my Tivo HD to 1TB over a year ago but decided to go with the 1TB WD Expander for the $60 Woot Premiere I bought last week (Newegg had the Expander for $80). As a very technical person myself, I am starting to suffer buyer's regret wishing I had just picked up a WD20EURS and gone right to 2TB for $30 more. I have had lots of problems with my Tivo HD in the past -- all resolved now -- and have gotten a little squirrely about breaking the warranty on a Refurb, though I do find the arguments you can just put the original HD back in pretty convincing or I'd never had done it for the Tivo HD. And as I see it, for $80, I get 1.32 gigs and a lot less hassle. On the other hand, I like having a single point of failure and lower power usage and I don't really mind the hassle that much!... Alas the DVR Expander has already shipped (I was going to cancel it). So here is my question. I know with the 1TB upgraded Tivo HD, that you can't add the My DVR Expander later for more capacity (unlike the XL). Is this still true for an already upgraded Premiere? I didn't see this in the FAQ. If I upgrade my Premiere to 2TB, can I add the DVR Expander for 3TB?? I hate paying for return shipping, and if I can always go to 3TB later, I may keep it.