Let's step back and look at this. The first thing you need to do is pick out your speakers and only then figure out what you need to drive them. So starting with speakers I'l tell you that I like something that will crossover to the sub no higher than 80hz. Why? Have you ever watched a ping pong match? Below 80hz it's hard for your ears to figure out where the sound is coming from. Above 80hz it becomes increasingly easy to localize the source. So if you pick a speaker with limited bass you can hear the source of the sound move from the speaker to the sub and back - sort of like listing to a ping pong match. That annoys me to death. The Nanosats have a small following here because they are so small and wife friendly but I couldn't handle them because they need to crossover at 110-120hz. That's a lot of audio ping pong.
Subwoofers are another area that need thought. Speaker companies generally do a lousy job with subwoofers and those you listed are the poster children for poor bang for the buck. Also to do their job well they need to be sized to the physical space. So let's say you're putting this system into your living room and that living room opens into the kitchen and a large hallway. If that's the case then you'll need to take into account not only the cubic footage of the living room but also those spaces that are open to it like the kitchen and hallway.
So your homework assignment is to figure out cubic footage for your space and then contact SVSound, Elemental Designs, and Hsu Research and have them size you a sub. They sell direct which will give you a lot more bang for the buck. I own subs from both SVS and Hsu and both make great subs. Another thing to keep in mind is your environment. If you live in an apartment or condo I'd avoid down firing subs if you have anyone below you, and avoid rear ported subs if you have a shared wall.
You may also want to take a look at package deals from
SVSound and
Hsu Research. Hsu's
HB-1 speakers do need a bit of space behind them so wall-hanging is out. The SVS' SBS-2 can be placed really close to the walls. I haven't heard their speakers but both have good reputations. There are other great possibilities but most are budget busters.
For a receiver (assuming you're in the US) I'd look at a factory refurbished Onkyo TX-SR608 from
Accessories For Less, or if you don't need 3D support a refurbished TX-SR707. The 707 is a better receiver but since it's last year's model it lacks 3D support.
