I am running an Onkyo TXSR503. I had given though to upgrading to the 803. But that would be later on down the road. My problem now is I have the Infinity Primus 250 Floor, The Primus Center, The PS8 Sub (more than my mom likes lol and its tiny but sufficient), The Primus 150's. But I want a smaller sytem with similar sound. I don't listen to music at home just in my vehicle. These would be used for movies only. I am 19 so please keep suggestions with in reason. I had given thought to the Infinity 1100 surround sound system or the Polk Rm6900 but didnt know if for a little more I could get much better or what? I'm lost help!