Will monitor the thread incase there's any questions I can answer
I'm on MCE (which is basically XP SP2 - I turned all the MCE services off).
Can't comment on the Twinhan as I've never owned one.. I'd do a search on these forums to see what you can find out. The FloppyDTV is solid and stable.. just make sure you use the latest drivers (well post Jan 08) as early ones stuffed up on ABC and SBS. Also, I found the Cyberlink Mpeg2 codecs best for OZ TV as the Nvidia caused stuttering.. don't know if that's still the case as I've switched motherboards to an AMD 780G (embedded 3200HD video). This works fine for me at 720p.
Best of luck.. you can buy them online at digital everywhere online shop which is where I got mine (took about 2 weeks to deliver). At the time I thought it was the best on the market so went with it.
Am using Selectv but via the STB and IR blaster into Compro E900F analogue - tried component but can't keep the signal so am forced to use composite. Been considering a Twinhan SP400 - is there any advantages other than no digital analogue conversion such as recording and viewing separate channels (eg same transponder) or not.