Canon EOS 50D

Canon EOS 50D is an upgraded version of EOS 40D - there are quite a few significant improvements:

Major features:

Magnesium alloy body, with environmental protection
DIGIC 4 Image Processor for faster processing, 6.3 fps up to 90 JPEGS using UDMA CF cards; 60 consecutive JPEGS or 16 RAW using standard CF cards.
15.1 Megapixel APS-C CMOS sensor
6.3fps continuous shooting, max. burst 90 JPEGs with UDMA card
ISO 100-3200, expandable to 12800
9-point wide area AF
3.0-inch Clear View LCD (920,000 dots/VGA) with Live View mode & Face Detection Live AF
EOS Integrated Cleaning System including the improved Self Cleaning Sensor Unit with a new fluorine coating
HDMI connection for high quality viewing and playback on a High Definition TV
Full compatibility with Canon EF and EF-S lenses and EX-series Speedlites