Ok, i've got the new hdmi xbox 360 premium (60 GB) and i have a sony bravia 40v4000 tv. Next on my list is surround sound. So can anyone recommend surround sound to buy. I dont have an amp/receiver unless sony has one built in. I'm a bit of a noob with this stuff. Budget is around £100 and would be good if it was amazon as i have vouchers for there. Thanks!