I get what you're saying here. And it might have been more helpful if you'd said it that plainly earlier on and several long posts could have been avoided. And I would have suggested you re-read my original post. LOL
It's all cool Mavgirl.
I would like to clarify something though...
I was giving an opinion based upon my experiences as well! I've dealt with similar situations as the OP is inquiring, as noted. I also listed and put into perspective the entire history of Canon's DSLR cameras.
On the other hand you never offered such. You simply made some statements and then offered nothing to back them up nor any context, as you never said what you shoot or why your burst rate upgrade was negligible, albeit doubled?
I never said the 40d would (in fact) be sufficient for him but it will prove to be a major upgrade over his camera. It's the second fastest APS-C camera Canon has ever made. All the camera's mentioned will be a big upgrade for him as he desires to use them.
I wholeheartedly agree with you though! Many people do use burst shooting in "hopes" of getting their one great shot. I rarely use it but when I do it's for an entire sequence of images. I always use "Single" shot mode and rely on my timing to get my desired images. It's saves a lot of post processing....