ReplayTV RTV5516 160-Hour Digital Video Recorder
Quality DVR.
I went for the Replay over Tivo, and have been very happy with my decision, while I think they are quite equal in many ways.  Although i must admit, if i were currently in the market for a DVR, i would go with the DVR available through my cable company (although the Replay offers more storage, at less cost now that service is included)!