Yamaha Receiver
Marty,
The Yamaha RX-V661 is a good mid-fi receiver option and includes HDMI. You can also find good deals on a refurbished 2600 or 1600 for <$500.
I am running a pair of Ref 1's on my Yamaha HTR-5860 at moderate volumes without any problems. I just ordered the Emotiva LPA-1 amp so I can run a full Ref HT and also use a couple channels for some house speakers.
If the Ref package is in your budget, go for it. Keep in mind that the Strata's have powered woofers, but a sub is not included. If you start with a mid-fi Yamaha, Denon, or Pioneer receiver w/ Pre-amp outputs, you can add an amp later if necessary.