I am currently building a home cinema installation and hiding everything. All the speakers are in-ceiling and in wall units with a new pany hd8 set flush with the new dry lined wall, for asthetics I really wanted to install an in-wall sub but can't seem to find a one within my budget Approx £300. Does any one have any tips/advise or horro story's - or should i just keep my yamaha free standing unit - wich would really spoil the effect. and another concern is if I set the pany flush with the wall how much gap/ventilation should I leave around the unit. The plasma will be mounted on a wall mount support which can be pulled out for access to connections and wires. Can anyone help? Thanks.