I'm considering getting a PVR, but I'm also considering some form of recordable DVD media. I'm on a limited budget and can get only one for now. I've noticed that most DVD recorders come with some capability to record one show and watch another at the same time. Some DVD recorders come with built-in hard drives as well. I'm fairly familiar with PVR capabilities, and the model I'd be getting is the Explorer 8000 (limited by my cable company).

Can someone outline the advantages/dis-advantages of both? Or make any recomendations for DVD recorders?