I'm going to hold off on bluray/hd-dvd for quite a while. 2 formats is excessively stupid, especially when not all distributors will publish titles in both formats.
Dual read units are great, but super expensive. What I do plan on doing, however, is building a media center box (actually, almost done building) to hook up to my new tv. I treated myself this holiday season to a 56" panasonic LCD projection in 1080p What I do want is to get the DVD unit for hte PC that's capable of reading both bluray and hd-dvd (i saw them for ~250 or so) and use the PC for everything. It'll function as a DVR, possibly hd tuner, play dvds, youtube, etc.