Dvr with harddrive replacement options

Hi everyone,
I have a Panasonic DMR-EH55 DVR that’s on the fritz and I’ll be sending to them for service. I’ve heard terrible things about their service department, so I’d like to know, now that it’s almost impossible to get an independent DVR with a hard drive, what are my other options for recording from the TV [regular, no-box cable], DVD player, old VRC, to some device that will allow me to edit out commercials and create chapters to burn my content to DVD [and retain the quality]. I have a PC laptop.
Thanks very much,
Jamie