I have also had mine BeoVision 8-40 for about two months, and together with my BeoLab 9 as front and BeoLab 3 as rear, it is just a fantastic setup. Stunning picture quality, and try to look at the black level, no other LCD can compete.
I am using the DVB-HD module, and it is really great looking menus, and the digital picture quality is just great. Ok yes you don't have fast change from one source to another, but i don't see it as a problem, it feels releaxed and casual, so the picture and sound is equal on all channels. Espacially the level of sound, it's just perfect that it is automatically leveled.