I'm in the market for a 16X9 Rear Projector and I've found some great prices by some on line retailers. I'm a bit hesitant because I've never used a on line retailer for such a expensive purchase. The retailer I was going to use was Onecall.com and according to Panasonics web site they are an authorized on line dealer which put me somewhat at ease. The TV I was looking at is the Panasonic PT53WX42 or the Panasonic PT47WX42. Has anyone ever used an online retailer for a Projector TV and what was your experience as far as customer service and the efficiency of the delivery?