I've cobbled together a system in my living room, and I'm wondering what upgrades I should consider, and what just needs to be left in place. System is 50/50 music (jazz/rock/classical) and film/tv. Listening Volume is typically around 15-20 db below reference. Budget maximum: one thousand dollars (just to limit things) Subwoofer: Dayton 10 inch (the fabled 25Hz one...) Speakers (front): B&W dm303, LCR-3 Speakers (rear) Polk R-15 Receiver: Onkyo TX-SR502 CD/SACD: Sony SCD-2000ES DVD: Oppo 971H Display: Viewsonic 2751w Headphones: Grado SR80 Other things-- I've got a Harmony, I get my HDTV from over the air. Satellite radio doesn't interest me. And this is besides hddvd/bluray... one of these days I'll choose my faction, but in the meantime, what else might I consider upgrading?