Best Buy offers the Nikon Coolpix S3500 20.1-Megapixel Digital Camera in Purple, model no. 26380, for $82.99 with free shipping. (Amazon charges the same.) That's the lowest total price we could find by $6. Features include a 7x optical zoom, 2.7" LCD display, 720p video recording, and more.
It's also available in Red, model no. 26379, or Silver, model no. 26361, for $84.99 with free shipping. (Amazon charges the same for Red.)
Update: The price has increased at Best Buy for the above camera styles; however, Amazon still offers both the Purple and Red models for $83 and $84, respectively.