I want to get a surround sound system. My setup at the moment is a 46" Samsung with foxtel & PS3. TV is on the wall & I want to have the speakers in the ceiling. I don't know shit about surround sound, audio stuff so any advice would be good. Do I need a 7:1 amp? (whatever that is). Is 5:1 or 6:1 ok? And how many speakers do I need, how many would go in the ceiling? I've probably got about 1k to spend, is that going to be enough? I don't a dvd/blu ray player, just amp & speakers.