Holy mackeral!!  March Madness takes on new meaning when you hook up 5100 to HD Cable Box with HDMI cable. Nothing like watching a 7 foot wide screen in HD.  Throw in PIP (not in HD) and life was good.  Also hooked up my Inspiron 6000 and could get March Madness on Demand thru CBS sportsline.com.  I could get 3 of the 4 games basically at all times.  The resolution on the HD was amazing.  After the games were over, I played 4 poker tables thru my laptop using my projector remote as a mouse.  Each table was huge and very clear-no flickering or delay.  I'm glad I stepped up to the 5100.  The capabilities are very impressive.  If anyone has questions on cables or how to hook up different things let me know.  I'm not an expert but I have learned a lot in the last month tweaking with it.