Wow I would love to get my hands on a Canon XL2 (and hopefully will be in the summer) just the ability to pull focus like that would be so much better compared to my HG10!
So would I, they are brilliant, if not expensive. My uni is pretty awesome as all we have to do is book them out and we can get it for about a week depending on demand. Next year we can get a Panasonic HPX500, and dam are they amazing!! I helped out on a mates film who used it and it looks so sexy. Here are the results:
http://www.vimeo.com/4210948
*Note* This is not my film, I just worked as a grip on it.