4 days to decide.

Canon EOS 450D (low-$1,000 range)

Canon EOS 40D (high-$1,000 range)

Wonder should I jump straight into semi-pro camera (40D) buy lenses at a later time or start from base (450D) and get some lenses to play around. Or should I just stick to my 3 years old Canon Powershot S2 IS for another period of time?