I'm setting up a 5.1 system, maybe a 5.0 for a little while. I have JBL N38s for mains, JBL N center channel. What should I use for surrounds. Will the JBL N24s match up the best with this or should I use N26's? Also is there a difference in sound from the N24s to the N24AW. The AW are outside speakers. I will probably wait a little while on the sub, but should I go with the Sony SM40 or the JBL PB-10 or PB-12? Any other suggestions. I like my mains for music listening so the sub would just be on for HT. The room size is 14x18', 8' high, with the back being open another 10' deep x 20' wide. I don't want to spend more than the PB12 on the sub.