I figured I would ask this question here because there are many experts in electronics on this board,and I wanted a technical explanation.I was wondering what the differences are between DLP and lCD rear projection TV'S with negative's and positive's on both.I know that the LCD use expensive bulbs to light up the screen.I was looking to buy the new Grand Wega Sony 50" TV (LCD)and was wondering if it was a good bet.Thanks for the help..... 8)