I have just purchased my first home theatre and need some help accessorizing it with audio and video cables. I purchased a Sony 42" Grand Wega Rear Projection LCD TV and a Sony 6.1 Home Theater System with a Progressive-Scan DVD player (Model: SON HT6800DP). I am also having high-def DVR cable converter installed. My friends swears to make this work, I need good cables. Can someone provide me a basic list of what cables (and brands) I should invest in with due consideration to the cost/benefit. Thanks!