Looking for some help here .. I just brought a new HT receiver home and am now confronted with way too many connections issues. Might be a dumb question, but is there any "must have" set of connectors/cables that I should buy? For example, I need to connect my DVD player and my cable box to the receiver .. do I use optical cables or S-Video? I'm thinking I should just head to Best Buy and get two of everything to be on the safe side.