You could buy two standalone TiVos and use them with analog cable. Multi-room viewing allows you to move the shows between the two units, so you can use the second as an additional tuner/recorder.

Or, in mid-2006, TiVo will have two HDTV units available. One will be a standalone CableCARD unit - dual-tuners, direct tuning of cable or ATSC. The other will be software for the Comcast Motorola 6412 DVR.

As for hacking your DirecTiVo, you could buy a 'pre-hacked' drive from PTVUpgrade.com or Weaknees.com and swap the drive into your unit. Then you always have the alternative to put the default drive back in the unit.