Ahhh I gotcha!! It does come as a kit lens with the 7D, but I bought it after.
I use onestop-digital
SO cheap compared to places like Jessops or Amazon.
I really don't see the point of the 24-70 F/4. It has less range than the amazing 24-105 f/4 and a crappier aperture than the 24-70 f2/8 yet costs more than the 105 and nearly as much as the 2.8 version. Such a weird lens, it does nothing better than either, a few things worse and costs are similar.
Oh yeah, bloody hell.. it is expensive!