What I find "tricky" about B&O is that a lot of the processing is done inside the "TV" as opposed to an external amp.
So the local shops are running an end-of-Australian-finacial sale/clean-out and there are some BC2s (or were) in the clearance.
But they really need to be coupled with a BeoVision.
Alternatively you can have a BeoVision coupled to a common or garden DVD player, including the PS3 and you will get the audio and video processing you need.
From the BV you would then run power link cables to your BeoLabs (including the BL11).
Typically you daisy-chain the power link speakers so that the BL11 filters out the bass range and passes on the mid-range and treble to the "normal" BeoLabs which are then able to perform better.
If you are getting a BL11 then I think the BL 6000s would be handsome performers; however if you can't afford everything all at once, then it may be better to get BL 4000s as they will deliver a better bass in the short term and add the BL11 later.
First B&O (1976) was a Beogram 1500 ... latest (2011) change has been to couple the BL11 with the BL6Ks *sounds superb*