I'm considering buying one of these and I have some questions. 1. Does everyone agree that buying the model with the HDD is worth the extra $$? 2. Some have Component IN and OUT....I thought these babies could only record in 480i? Will running these through component instead of S-Vid really help that much? 3. Can they record (and playback) 5.1 audio? The one I looked at had Digital Audio (Coax and Optical), tho I can't remember if it was in, out or both. 4. How would I hook this up? My DirecTV is via a Zenith Sat-520 box running to my Tosh 57H83 via DVI-HDCP. I don't have another video output when in this mode....any ideas? 5. If digital audio capable (see #3) I have another problem as my receiver has two (1 optical and 1 coax) and they are being used by 1-DVD and 2-STB(Directv). Is there a switcher available? One that's operable via remote? I think that until we get HD combined with DVD-R, combined with HDD combined with TiVo combined with Directv its just a waste of time....your thoughts?