I never felt the SD video off the Xbox360 was all that great, the XA2 blows it away, my new A2 is still in the box so I can't compare it to either, I haven't decided if I'm going to keep it or give someone a really nice X-mas gift. Even though my closest Walmart is 45 miles away it was too good a deal to pass up.
I have to say from what I saw Toshiba just got a ton of HD DVD players on the street, I called Walmart this morning at 08:00 and asked them to hold an A2 for me, they gave me an hour to get it. At 8:45 when I picked mine up the sales lady told me all the Walmarts in the area had sold out by 8:30.
There were many of those Sanyo 50 inch Tv's at $998.00 going out the door also.

A computer once beat me at chess, but it was no match for me at kick boxing.