Hey guys, First time post here, well the other week I listened to some Polk Lsi's, and was glad to say I was amazed. The store was selling a 5.1 set with the Lsi15's and LsiFx rears for 3200, which I thought was a fair deal, until I came online to www.acousticsounddesign.com !!!!! Now then, my budget is $3500 for speakers, give or take the $500. I'm worried IF I should get a Lsi15 7.1 set, with 4 Lsi 15's and two dipole FX's, or a 5.1 LSi25 set with 2 Lsi25's with two dipole FX's? What type of power should I run these babies under? Is 7.1 that big of a deal? I have not had a chance to hear the Lsi25 but whats the difference from the Lsi15? If I purchase a seperate subwoofer (SVS likely ) will it matter which speaker has the better subwoofer? And one last question, how do you think the Polks stack up against the Axioms, thanks in advance. I'm on a tight tight tight tight budget.