Ivan, thanks for this info. The new GUI 3.0 looks very good overall (and the "cover flow" main menu is interesting). Can't wait for the x86 release.
I'm leaning towards getting the TS-809 after it comes out, and after you finish qualifying 2TB drives:
http://forum.qnap.com/viewtopic.php?f=12&t=11550
I'd prefer to get something faster than the WD Green series for 2TB drives, but I'm not sure when other HDD models will arrive (I know the Seagate Constellation ES enterprise 2TB is coming Q3 of this year).