Looking for opinions on the 4 mentioned projectors... I am upgrading to a 720 projector from my current Epson Home 10.... granted these probably are not quality projectors expecially for using with blu ray...(I am more for the sound with my decision to go Blu).... So if anyone has first hand experience with any of these and has either GOOD or BAD comments about any of them please post.... When things seem so similar I need some sort of push... as to what direction to go. Thanks!