I want to buy a HDTV (SAMSUNG) for my Xbox 360 (for Gears of War 3 n Fifa 12). But I'm totally confused: issues regarding input lag, refresh rate, resolution conversion, etc. I don't want to end up wasting a lot of money, so which Samsung HD TV is the best for gaming? Please need proper advice, preferably from s/o who is using a Samsung TV with an Xbox 360. My budget is about 70k but I would prefer something in the range of 50k or 60k. The three models which I came across in the display centre were - LA40d550, LA37d540, LA40d503 (is either one worth buying?). And it would be great if you guys could send me a PM apart from replying within the thread.