Screw the sharp aquos. The best rated LCD screen out there is the Samsung LN-T4665F. This TV just kicks ass. Only problem is they were having issues with the originally shipped circuit boards that were in them. The HDMI was losing signal on them, and people were getting pink flashes on the screen. This was all resolved by replacing the firmware and boards with the 1028 or 1024 firmware patch and replacing the board with the 1008 model. The LN-T4665F's that are being made in June will have this change. I would wait to July to be shore that you are getting the new crop.
****As for the DLP HL-TXX76S's, I just got off the phone with their Teir 2 Tech. I talked to them aboutthe problem and they said they have resolved it. I told them that the tech had know clue what to do with the problem, and they responded that they have just found the fix recently. The problem lies not with screen, but yes the dreaded mirrors that are located on top of the TV. He explained that the fix is an adjustment of the mirrors(which a lot of us have had) and then an extra screw is placed in the mirrors. He said that this extra screw will flatten it out perfectly. I hope someone on this forum who is having a tech come and fix the bowing issue lets him know of this. The Tier 2 tech said if the Tech that comes out does not know of this fix, tell him to call Samsung's Tier 2. 1-800-SAMSUNG and then ask for Tier 2.
I then asked him if Samsung is doing this fix in house so that future buyers won't have to have tech visits. He said yes and that this has been implemented since the fix was found. Who knows when they will hit the shelves. HOPE THIS HELPS YOU ALL MAKE YOUR CHOICES. I might just go with the 5076S again and just have the tech come out and fix it, but I would like to see someone who already has the TV to have the Tech come out and put this new fix to the test.