I have a friend moving to an apartment for an interim time before buying a condo. What size speakers would be best to give good surround performance without being audible by the neighbors? Is a sub even appropriate in an apartment or condo? I see whole systems advertised, some by good names but the speakers are very small. Will these sound tinny? Speaker wire is a problem in an apartment. Are wireless speakers viable? Is there special flat speaker wire that could be routed under a carpet without showing through? With the boom in condo sales what are people doing? Any thoughts on these problems would be appreciated.