The Canon Rebel XSi SLR Camera is today's Best Buy Deal Of The Day, if you can call it a deal.
Yesterday's Best Buy Deal of the day was great with the LG BD370 priced at $129.99. Today you can find many other stores that beat the price of $599.99 for the Canon Rebel XSi SLR Camera (Body Only) featured in Best Buy's Deal of the Day.
On Amazon the 12.2MP Canon Rebel XSi (Body Only) sells for $521.89.

With Auto Optimization and a 14-bit A/D converter, the Canon Rebel XSi digital SLR camera is able to capture images at high resolutions. The built-in self-cleaning unit helps rid the sensor of dust.
The XSi also features Live View Function, a DIGIC III Image Processor, plus a new 12.2-megapixel CMOS sensor.
More details on Amazon.