I'm buying a new house and all I can think about is that this may be my 
chance to finally get my hands on a new Bang & Olufsen audio system 
for both listening to music and enhancing the sound from my main 
television in the lounge. I think I am going to buy a Panasonic Viera TX-P50VT30B 50" Full HD Plasma TV. I can't afford £20k for the B&O TV I saw in a store last week.
So,
 I've got a brochure, visited the B&O website but I still can't 
quite work out what I really need for a super sounding system at the lower end of the price range. I would 
like a system that can grow as my budget allows and therefore enables me 
to expand the system in other parts of my new house. This probably means
 that I need to ensure that the house builder runs the cables when they
 build the house rather than waiting until I can afford all parts of the
 sytem and having to retro fit cabling.
My new lounge (where the 
Viera and the new main system will be) is 17ft x 12ft. So, what options 
do I have at the lowest end of the B&O price range. Beolab 5 and 9 are too expensive for me. What would you recommend? Beolab 3 and 4
 speakers are affordable. Would I need 2 of any of these or I guess 4 if
 I want surround sound? I assume that I would need a sub woofer too. 
Would that be a Beolab 2 or 11? To drive these speakers would I need a BeoSound 5 Encore
 if I want to potentially add more speakers in other rooms later? Have I
 missed anything? How would I need to store my music? Currently it's on iTunes on a Macbook. Should I be getting a dedicated server or hard drive? 
I would really appreciate your help and advice.