My father realy likes the light weight DSLR cameras,so for the last years he uses the canon dx00 series.Now as a matter of competition with Nikon/Pentax really low cost entry level  Dslr cameras.The new Canon D5000 is the Canon answer to that trend.The new Canon D500 has HD video capabilities,better low noise/ISO photography and a better (in my opinion).Here are the main features for the new Canon D500,also known in some places as Ti:

Technical Details

• New 15.1-megapixel CMOS sensor with DIGIC 4 Image Processor
• Includes Canon EF-S 18-55mm f/3.5-5.6 IS lens
• Full HD video capture at 1920 x 1080 resolution; HDMI output
• 3.0-inch Clear View LCD; Live View Function for stills (Quick, Live and Face Detection AF modes) and video
• Capture images and video to SD/SDHC memory cards

Read a review made by pz.com,the bottom line:"The EOS 500D is another recommendable masterpiece from Canon. However, Canon EOS 450D users don't really need to upgrade unless there's a critical need for the movie mode functionality."

Read the full Canon D500 here.