So after finding someone to buy my XTi for $350, I figured it made sense to upgrade to a 40D for the 350 extra. I'll be in college soon and won't be able to spend the kind of money that I would need to upgrade in the future, and the 40D seemed like a pretty future-proof camera for the next 4 years, as long as it doesn't brake down.
That said, I've heard mixed opinions about whether or not the 400D has the same image quality as the 40D. Can anyone tell me what to expect when taking pictures with the 40D? I only shoot in RAW and M or Av mode, so DIGIC III doesn't really mean much to me.
Also, is there anything else I should know or be excited about? I'll be getting the 40D hopefully late next week and taking it that weekend on a backpacking trip that starts and finishes in NYC, so I should be able to make good use of my new (refurbished from Adorama) camera.