Hello speaker people, I'm about to set up a new sound system to go with my new 37" HDTV. I already have a sub woofer and surrounds and I was wondering if anyone had any ideas for "best bang for buck" for a pair of floorstanders costing at the very most $500 including tax. Do floorstanders generally sound bigger and better than similar priced bookshelf speakers? I also will need a center speaker and receiver. I'm considering the Onkyo sr 505 but would prefer the 605 with its better hdmi connections but it costs about twice as much as the 505 and that would destroy my center speaker budget. And do those better hdmi connections on the 605 make that much difference compared to the 505? I guess I should ask the receiver people about that, sorry for asking that here, I'm just looking for best bang for buck all around.