Alright, need speaker help

[skatalite]

I've got a HTIB right now that does the trick but I know I can do better. And I'm planning to moving to a larger area soon, so I wanna upgrade.

I'm looking at a Denon AVR-1910 receiver. It's a 7.1, 90 watts per channel. Here is a link: http://tinyurl.com/njkbyh

But what speakers and sub do I get?!

I was looking around on Crutchfield as a basis of searching. And I found these:

- Energy RC-Micro 5.1: $599. Link: http://tinyurl.com/nvn8dp

- Polk RM85 5.0: $399. Link: http://tinyurl.com/ksfhet
and if I get the Polks, I'm looking at either one of these subs:
- Polk PSW10: $149: Link:http://tinyurl.com/n6mrev
- Polk PSW111: $299. Link: http://tinyurl.com/ndqkkl

If I buy the Polk 5.0 and a Polk sub, I get $100 off the total.

So, what do you guys think? This is just a starting point. I don't envision myself to have a theater in my house, but something that is loud and clear enough to fill a modest-sized living area.

I know the receiver is 7.1, but I don't feel the room I'm currently in would need the extra 2 speakers.

Any opinions would be appreciated! Thanks!