Former Polk dealer (early 2000's), current Energy dealer. To me, the Polk offerings haven't changed much over the past few years and have thus, gotten fairly stale.
I really, really, really like the Energy line. I'd been hesitant to try it, but the rep drop off some samples so what could I do? Really nice speakers. I thoroughly enjoy the entire RC line. The RC-10 is an excellent bookshelf speaker that will do well with music & movies.
Counter Point(s): The above being noted... If the Canton GLE line (which is in the same budget as the Energy RC pieces) is available to you, I would HIGHLY recommend considering them. Something like the Canton GLE 402 (MSRP $500 pair)
http://www.canton.de/en-produktdetail-gleserie-gle402.htm
or
GLE 403 (MSRP $600 pair)
http://www.canton.de/en-produktdetail-gleserie-gle403.htm
Canton, in my opinion, makes the absolute best built speaker on the market & have for years, hands down. Quality (both sonically & fit/finish) is their #1 priority & it shows. These speakers are beautiful in all regards (the Mocha & White is stunning!).
That being said, a 5.1 Canton setup might not fit into your budget of $1200 - $1400 CAD.
If your budget starts to get squeezed a little & if your room size is moderate to small, I would strongly consider the Energy RC-Mini line.
http://www.energy-speakers.com/v2/products/product-line.php?id=318 . Extremely reasonable for the cost. High performance & build quality of the larger RC pieces.
Good Luck!