Do yourself a favor, go and listen to several sets of speakers. Speakers are the most important part of any audio setup. The other thing, take a look at some of the BIC tower systems. They sound great, built well, are pretty cheap (thats why a lot of people dont like them) and come with a 7 year parts and labor warranty. I have the center chan speaker dv62, it sounds great. If i had it to do all over again, I'd buy their entire setup. I'd also go with the SVS sub.
Venturi DV84 front tower $150 each
DV62si Rear $120 pair
DV62CLR-S Center $110
Hey, for $530, isn't it worth giving them a listen? I guarantee you will be impressed.