Creating a new set-up

Hi lads,

Just moved into a new house and I'm wanting to get some kind of half-decent set-up in my main room.

The wiring is already in place (previous owners had a SS cinema system) and all I want is 4 (or 2 if it's a lot cheaper) speakers to be mounted up in the top corners of this room. I only ever play music through my phone, I don't need a radio/cd player at all, so having a system that could play through Bluetooth or airplay would be excellent.

I've been quoted £500 for a mini-hifi system and a pair of bose speakers (fitted) which sounds really pricey for the simple things I require. Would anyone be kind enough to recommend something cheap that fits the specs for me?

Apologies if I'm posting this in the wrong place :o

Thanks