I'm looking to buy some speakers. I already have a 7.1 receiver. I will use it for movies and music. The two I am looking at right now are Onkyo SKS-HT540 (7.1) and Boston Acoustics CS2310 (5.1). I don't want to spend a crazy amount of money. Does anyone know which will sound better? I know one has 2 extra speakers but I can always get two more later if I feel like I need them. Assuming I can get them for about the same price, which one should I get? The onkyo one has gotten really good reviews but is that just because it is usually priced very low and compared to cheaper sets?