I have a Toshiba 34" 16x9 HDTV, Dish 6000 with HD card, a Microstar 6215 book pc with a MYHD card for recording OTA HDTV broadcasts. The PC is in back of my cabinet, and has a 802.11b USB network card, and I use my laptop to take control of the PC to schedule programs, etc.
You can read more about the MYHD card at
http://www.digitalconnection.com/Products/Video/myhd.asp
It's great being able to timeshift HDTV. The only bummer is you can't record from the Satellite at this point in time.
I use a freeware program created by this person:
http://www.midwinter.com/~bcooley/ for editing commercials out the programs I record. The coolest thing to record are the movies on ABC, because not only are they HD, but 5.1 audio also.
I'm looking to purchase a DVHS, so I can archive my recordings to tape. Right now I have a 160 gig Hard Drive, which holds around 25 hours of HDTV programming.