I currently have a bundled sony hi fi. The MHC-GX45, i am getting rid of it and need some help on what to get. I would like to do it properly this time rather than opt for a bundled set. I have no experience in the 'Hi-Fi' area and would greatly appreciate some help. The hi fi will be used to mainly listen to music, almost every genre, and to watch films. I would like it to be quite powerful but i dont need anything crazy. My room is 6.5x4 metres. Thanks.