Denon AVR-1713 - Efficient Speakers

Hi,

Just bought a Denon AVR-1713 from BB over a Marantz NR-1403 since it was an open box.
I want to use it in my basement in a listening area that is a 10X14 and primarily watch Moves (BD), watch sports etc. I do not want to blow the roof off but want crisp clear sound for dialogues and the welcome boom out of a sub woofer.
While I have looked at DT Pro Cinema 600 series, I am looking for a comparable or near to that for lesser coin.

As much as I would like tower speakers, piece together setup etc, I do not have the side room for them.

I have Polk RM6750 in my living room and am curious if the same would do a good job or a TL series etc...

Any and all options for something in a budget of $300ish

That does look interesting and the reviews call it a shameless clone.
Has anybody tried them out that can comment on the sound and quality (overall)?

Okay, Best Buy is making it interesting. March audio fest has certain Polks at 50% off. I am thinking of the following:

Front and Rear: TSI100 Bookshelf ($109 per pair)
Center: CS10 ($94)
Sub: PSW10 ($89 newegg)

This combination looks good but not sure. Any feedback on this?