I have a 350D since March '05. This is my first DSLR and I feel I am getting better and better with it. I am considering upgrading to a 5D or a 40D when they come out.
I want to make sure that I am upgrading for the right reasons instead out of lust and want.
How did you know it was the right time and reasons to upgrade?
If they come out with a 40D (with all the features of the Rebel 400D), then I might be convinced to move up 



