You made a very costly mistake and no one noticed so far.
You can't burn HDV 720p or 1080i/p/aP footage onto a DVD. You're going to need Adobe Premiere Pro Cs3 for the honor of blu-ray burning and a $425 Blu-Ray Burner.
In essence, you aren't going to be able to display the hd footage without the camera and HDV export to tape.
Also, HDV doesn't give better color reproduction or anything. Its DV with more pixels. So its not better quality, just resolution.
Sorry.
But heck, if you bought the camera just snag an iMac or something. HDV tends to run at a gig a minute and stuff. NOTE. HDV is precompressed to MPEG2, so your system has to decode it. You need a snappy computer....