Help With Home Cinema Ideas.

Hello.

I’m planning to convert one of the spare rooms in my house into a home cinema. I intend to go the full hog, black painted walls and ceiling, a wooden screen across the window etc. It’s going to be somewhere I can escape to and watch my extensive DVD collection. The room itself is only five metres long. I plan to put a ‘lazyboy’ style sofa in there (there will be only me watching) The thing is, I wonder if anyone can give advice as to what type of LCD projector and sound system would be best suited. Ideally I’d like something which can project an image of at least 150” onto the white wall/screen. Lastly, budget isn’t an issue, that said I don’t want to go mad. Any advice would be much appreciated.