I personally would wait for the updated version which should be coming out later this year.
The BeoVision 7 isn't too special when it comes to some DVDs or SD sources (unlike say, the BeoVision 8, BeoCentre 6 or BeoVision 9), as it still uses the older picture processing techniques which are getting a bit long in the tooth now.
The updated one will have a BeoSystem 3 as it's heart, giving you picture you wouldn't believe. Just look at a BeoVision 9 or 8 to see what I mean.
If you can't wait, I would personally go for an Avant instead! Much much cheaper and you won't have any problems with it going out of date!