Yeah, I actually got the D40 because of it's size. I was planning on doing a lot of hiking with it so I wanted the smallest DSLR possible. I've really been pretty happy with it, but now that I've had it for a while, I'd like to upgrade to something with a little more features. For instance: focus points and light metering that work more than half the time.
You have a bunch of teleconverters! I have heard mixed reviews about using them. I take it you like them?