I've had a DSR6000 receiver for over 4 years now, and it's still working fine, with a second hard drive. The fan gets really loud, though, which drives me crazy. I figured that I would probably qualify for some special offers from DirecTV if I gave them a call, and I'm trying to decide whether it would be worth asking for a new unit. I haven't found a good comparison of all the current DirecTV models. Is it likely that I would be able to get a newer TiVo unit, or would I probably be stuck with a non-TiVo DVR? I don't have an HDTV yet, and it will probably be at least another year or two before I get one. Should I just keep using what I've got, or is there something better out there? Any suggestions about the fan noise?