If you have a Canon PowerShot camera affected by the CCD Advisory (which has been expanded a couple times since its initial announcement), be aware that the turnaround times Canon's offering may be a little optimistic.
Based solely on my own experience, you're looking at upwards of a month's turnaround. I was told 2 weeks on the phone, 7 days in my letter, and 10 days when I first checked my repair status. With 3 days left until it's been a month, my camera is still "Accepted" and "Not yet shipped".
