Ok, here is my plan. I've got the JBL scs135 speaker set. In a few months I plan to buy a pair of N24s for mains and wire the scs center through the scs 8 inch 100 watt sub (keeping the sub close to the center channel so it doesn't draw too much attentions to itself) since the center can't produce any sort of low frequency whatsoever. It should work out since the n24s and scs series both use titanium laminate tweeters. I'm also going to get a new sub. Question is....should i go with the sony 12 inch that everyone raves about.....the JBL PB10/12....or the cerwin vega LW-12 ?? (really haven't heard much about this sub on these boards) Also, is this whole upgrading idea any good?