I would suggest an AV receiver and surround sound speakers, 5.1 or higher, imo 5.1 works well enough for me.
I have the following with Sky, DVD player and PS2 alll connected to the AV reciever:
http://www.richersounds.com/showproduct.php?cda=showproduct&pid=YAMA-NSP110
http://www.richersounds.com/showproduct.php?cda=showproduct&pid=YAMA-RXV359&SID=1a68a61cd3839aa9d2173d92fe98bab9
Works really well and gives you good bang for very little bucks, my bro in law has a 2k Bose set up and tbh there aint that much difference between the two unless you really crank it up and stand in the middle.
Once you have the speakers and AV receiver its fairly simple to connect everything together