PopBox! ... kidding of course. I'd have to say Syabas' other streamer, the C-200. By year's end, I think we'll have better, more fully realized streamers to answer the which-is-best question. Looking forward to my Dune D1 and SageTV HD300 (both pre-ordered). Also looking forward to the Boxee Box, especially after reading this preview. What I'd really love to have is a single box w/the best of all three, but that may be another year off, unless of course Boxee surprises us with this November wide video format support and hd audio.
Dune Base even tho mine died last month. I've had load of different players over the last several years. I like the Seagate too as I use it for Revision 3 and Netflix duty and it does okay on my blu-ray rips.