I just upgraded to a 5.1 receiver (Sony STR-DE885) from my old Yamaha RX-V590 2.0 receiver. I never had a center or surround speakers, just a pair of main speakers. But now I want to get the most out of my new receiver. Only thing is I have no idea what speakers to get. My current speakers are Cerwin-Vega RE38 Series. They have 15" woofers and they go pretty darned loud. I love the way music sounds through them, and movies sound nice also with lots of bass. Only thing i don't like about them is the size, but I can live with that. My question is though, what center and surrounds should I get that would closely match these speakers acoustically? I want to spend around $500-$600 total on the 3 speakers and I am going to stick with the woofers I have in the mains for bass until I can get a decent subwoofer sometime down the road. Another option would be to sell these and just get a full set of speakers for around $1000. (I have a co-worker who offered me $500 for my current speakers, which I am not sure is a good deal or not because I inherited these speakers from my brother when he went into the military and i have no idea how much they're worth.) I don't want to get rid of these if it means getting speakers that don't perform as well for my music, but if they can handle music and movies really well I'll consider it. Any suggestions would be greatly appreciated. BTW, I am partial to a sub/sat system for the mains because of the size, but would consider a new pair of smaller towers for the mains also. I am on a budget so the max I'd spend on just the center and surrounds is $600 and the max on a total package is $1,100.