I've just invested in my first AV and am now in the process of putting together a speaker system. I am in two minds whether to just add some rears, a centre or instead get a package. Is there a great deal of difference in terms of sound quality? What does anyone think would be a good compromise, and if I were to go for a package, would I be able to integrate it with my current stereo speakers? I have a fairly small budget - £150.00, so any advice around possible set ups would be really great. Thanks guys.