I currently use an Marantz SR4200 receiver. I am looking to upgrade and have found a few receivers in my price range. I am looking at an Onkyo TX-SR805, Pioneer VSX-1022-K and 1021-K and DENON AVR 2309CI. I am looking to spend under $300 for a used receiver. My biggest wants are DTS HD and 7.1 audio. I have a turntable and would like phono inputs, but right now I am using a separate pre-amp so that's not a major concern. I am not stuck on the above receivers so any input on other models would be great. Thanks in advance!