You can find a decent HDMI-DVI cable or adapter at mon0price.com.
I just ordered an adapter for my Samsung DVD player since I'll be using HDMI to connect to a 622 receiver.
I'm a new Dish sub also. Ordered on 2/11 with HD Silver pack. Received a 622 via USPS on 3/1. Install date is tomorrow (3/6). It'll be raining all day. Might be rescheduled but I'll keep my fingers crossed.