I wouldn't ditch my A1 for an MKII just because of the audio factor.

Now, if the next series in the XH line (XH-A2?) were the XH-A1 with the image capabilities of the MKII and an interchangeable lens capability (which I could see happening), then I would be all over it. :)

Music video shot with 5D feedback
 

Ken and rest of experts on Canon's 5D and XH-A1 Thanks for all your input and feedback on the 5D and A1.

Based on your feedback and last minute opportunity to pick up a 5D mkii, I used the info to use the 5D for my first music video production. See my result:

Pretty impressive for a first music video - very nicely done. You can define a whole lot of dark with just a little well placed light, I would have liked to see a touch of backlight on the singer and the dancers to separate them from limbo. It looks like the light was there on the singer but set a little low. Then again this may be nitpicking, you've done very well, I look forward to seeing more.
Did you have any budget to work with, or was it pick up gear and folks where you can?

Music Video
 

Thanks. I here ya on the lighting though part of the effect we wanted was to "see the light" from one direction. This was done on a very very small budget, so the lighting we had was mostly used to create the ambiance of the club. We did have a small light for rim, but dancers fast movement was not always easy to follow. Time was also a major factor that restrict some extra attention needed for detail. It was a great first experience and opportunity to improve. Feedback like yours only helps make a tighter production, so thanks again.

Definitely worth making a jib, follow focus kit and lighting part of the budget if you do not already own it all. As well as hiring a DP and help, since it was more pick up folks that you can. But again that depends largely on the budget provided for the shoot.