I just listen with the 2 fronts and a centre without rears at the moment.Movies sound amazing with just these 3 speakers while I'm waiting to afford decent rears. I can still select all the 5.1 options and they all play but I'm worried I'll do some damage if the amp is being forced to output to something hta'snot there ie outputing to 5.1 when as I said I only have the fronts and centre connected? Also, for the rears I was thinking of getting some MA Radius but has anyone got any suggestions if I was to go for a brand like M&K? Would they be worth the extra money? Also someone metioned the best quality rears I could get (because I can't get anything to big due to space) would be speakers from a company called Totem is this a good suggestion?