Hi guys, I need a bit of help picking out a sub.  Here is what I plan to purchase for my system.  It will be 6.1 and I already have the three 422 satellites.  I want to buy two 532-LRs for the front channels and a 533-VAC for the center channel.  Now I've already gone over my budget so I'm trying to save on cash.  Would the S-8 be an ok subwoofer for this system?  I'm not a huge bass crazy person, I just want the lower frequencies to be there.  I'll be mainly watching movies and playing games.  Would the 532s drown out the S-8?  Do I absolutely have to get the S-10?  It's twice the price and my wife will go crazy if I buy it.  Thanks ahead of time guys.