"Good Knowledge" is my choice.
I started with HT of mine 3 years ago, configured it and updated several times since then, never required any outside help, except those bonzos from COX N.Virginia*, when the SA 8300HD started to perform poorly.
I also helped my sister and some friends to setup their systems.
As most of mine past and present equipment is based on Denon, whose user's manuals are just hell to read and follow, I should really have some kind of "Sliver Star" awarded, shouldn't I ?
Learning great deal from my good pal and (mostly?) from Forums like this, also from AVS, Audioholics, CNET, Sound&Vision reviews as well as from the ebay (!) - you can learn a lot from items description and direct emails with the ebayers.
As a vivid surround-sound enthusiast, I try all posssible connections and sometimes use them alternatively. And DenonLink3 is a blessing in this matter, although I still prefer 5.1 analog connections for SACD.
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* I call them "bonzos" because not only they ignore the HDMI output of this STB (they OFFICIALLY DON'T SUPPORT IT !), they are not willing to even entertain the thought of upgrading the firmware for that box, so we can start using the HDMI switching of our receivers (well known SA 8300HD HDCP "shake-hand"problem).