I think the people in this thread are talking to far above your head. All you have to do is get some speaker wire and connect it to an amp, the one you linked on amazon should do fine.
I recommend using Optical out on your blu ray player to connect it to your amp, but the amp you linked doesnt have optical in.
RXV 367 AV Receiver: Amazon.co.uk: Electronics[/ame]
If you spend more and get something like this one above you get the capability to eventually add a bass and two rear speakers and have a 5.1 set up. In the mean time this also acts as a HDMI switch meaning you connect you can connect your blu ray player, ps3, xbox 360 or whatever in, and have one HDMI cord going from the amp to your TV.
I have two paradigm tower speakers like this and they act as the two main front speakers in my 5.1 set up. I think thats what most people would eventually use speakers like this for because most home theater amps support 5.1 and 7.1 speakers.