I got this in the mail yesterday.  It is pretty sweet. A tongue in cheek review done in the style of a real lens review can be found here. Thank you canonmugs.com.

  

I'd love to have this lens for my 40D, but it is pretty tough for me to justify the $2800.  I like photography, but don't spend near as much time doing it as I should.  I have done some Strobist type stuff that has turned out pretty well.  Maybe I'll get to doing a little more of it now that I'm on holidays for two weeks.  But the priority right now is on landscaping: the scope of my plans seems to be growing.  Not sure if that is a good thing or bad.