Just a quick warning - something you absolutely need to be sure of when buying a home cinema system is compatibility between products.
I had serious problems with
Comet, after being recommended a Plasma TV and DVD player - which weren't even properly compatible.
The big issue was the DVD player not having the proper output connections required for a Plasma TV, to help ensure decent picture quality, resulting in a disappointing overall experience - not least because Comet decided to be difficult about the issue and refused to issue a refund.
Had an exchange in the end, but left me plenty sore because of it.