Price drop. Dell Home has the new Canon EOS Rebel XSi 12.2-MegaPixel Digital SLR Camera with 18 mm - 55 mm - f/3.5-5.6 Canon EF-S Lens for $680 - $80 code SZT8CS0RVR2HMJ [Exp 10/16] = $600 with free shipping. This is Canon's latest prosumer digital camera, rendering your XTi all but obsolete.

12.2 Megapixel CMOS, EOS Integrated Cleaning System, 3.5 frames per second
MultiMediaCard, SD Memory Card, SDHC Memory Card, Pop-up flash
Li-ion rechargeable battery, 3" LCD display, LCD live view mode