Purchased a Sony 51 inch KP-51HW40 (widescreen) and Sony Progressive Scan DVD Player DVP-NS715P this weekend. I was reading somewhere in this forum that new models are coming out with a new type of feature? I am receiving the Sony at the end of August (delivered to my new home). A couple of questions: 1) Should I have waited for these new types of HDTV's? If so, I can still change my mind and switch. 2) I heard the KP-51HW40 is a good HDTV (mostly positive reviews). Anyone disagree? 3) The salesperson convinced me to buy Monster cables (I bought Monster Cable 2 Component Video Cable MV2CV-2M). I can still take these back. Are they worth it? 4) Also the salesperson convinced me to buy the Monster Cable Home Theater Power Center — HTS1000. IS this worth it? (I paid 125 for it). 5) I assume I should get the avia guide to home theater for calibration. Is there a place where I can purchase it cheaper than $35-$40). Also if anyone has any other tips for me I would really appreciate it. By the way, I have a low end home theater system (avia 300 watt non DTS (need to improve on this) that I will temporary use as my audio system. Again, I look forward to feedback. Thanks!