You really want a seperate amp / receiver and a 5.1 speaker package, however you'll struggle to get that for £200. Some all in one surround packages may help, but your best looking in the dedicated forum on here for advice on all-in-one surround sound kit.
You might get the best bang for you money, by getting kit in the trading forums, although you'll still struggle for £200.
Perhaps, save your money for now, and start learning what you need / want, I'd suggest you'll want to spend more like £500 at least TBH..
As you have the EP30, you really want an amp that will accept audio (PCM) via HDMI, so you might, if your lucky get that for £200 then a 5.1 speaker package again for about £300 if your lucky, but if you want the sound to match the image, quality wise I'd suggest you want something that is probably gonna cost at least £1K.. As many say 50% of a movie is the audio... how much have you spent on the player and screen...
