I think the HSU might be a bit overpowering in such a small space. They also are more forward than a typical soft dome tweeter and to some people this is perceived as harsh and even fatiguing to the ears. The Ascend recommendation is a good one, and I would definitely consider allocating less of your budget to the receiver, and more to the sub.
Another great choice is Home Theater Direct (HTD). They are very well reviewed, there is a good one on audioholics. You could get 2 pairs of HTD Level 3 bookshelves and a Level 3 center for $800. Pair that with say an SVS PB-1000 and you would have a great system. They also come in a very nice looking dark cherry.
Samsung PN60F5300 | Denon DBP-1611 | Roku 3
Denon AVR-1713 | EMP E55Ti | EMP E56Ci | EMP E5Bi | BIC F-12
Topping TP23 | NHT SuperZero 2.0 | Velodyne DEQ-8R