Is the 311 a ViP? If not, get a ViP model HD receiver (722 or 722k). You'll want to connect the two with component (red, green, blue, red, white) or HDMI cables to receive an HD picture.
You'll also have to call Dish to get HD if that's not an HD package. If you want OTA functionality, that's like a DTV converter box (using OTA signals) integrating into the 722. Where are you in Wisconsin? (You may want to put your address into tvfool.com if you're interested.)