I am considering adding presence speakers to my current 5.1 set up as listed in my signature. I know I need to at least add a rear center to get to 6.1 but the layout of my room is weird so that makes it difficult from teh get go. Will I really gain that much more by buying 2 more presence speakers and a rear center? If I do shoudl I stick with paradigms? I know not alot of dvd's take advantage of 7.1. I just want to get the best our of the set up I have now and if getting more speakers will help then im all for it...just need some expert advice since I am a newbie of sorts.