So although I have no problem with my 40D, lately I've been looking at upgrading. My first thought was the 7D, mainly for the 100% viewfinder & electronic leveling.
Then I looked at the cost of a second hand 5D mk2, and it has got me thinking. I wasn't planning on going full-frame just yet, but I suppose if I can be convinced I'll make the leap.
I primarily do landscape photography, with the added bonus of getting good family photos.
Below is a quick cost analysis I did showing how much it will cost me to upgrade my body & lenses, based on market value.
Would really appreciate what people have to say on what I can expect by upgrading to this gear - I need to be sold or talked out of this!