I have a Yamaha RX-V520 A/V receiver with a SpeakerCraft 6.1 LCR center speaker, a KLH subwoofer and Polk Audio R15 speakers for the front and really cheap KLH 911 speakers for the rear. Obviously this is a budget system, but I would like to upgrade my front speakers and move the Polk Audio's to the rear. I need to keep the cost under $300 for the pair, so I was looking at the M2i speakers. Do you think this would be a wise choice? With this setup, will I really be able to hear a substantial improvement? (We mainly use this system for watching DVD's, but occasionally I like to listen to music CDs (Mannheim Steamroller, Jazz, soft rock, etc) and I like to "crank it up" when the family is gone). Thanks for your input!