Any one out there that cameras?

I wanna connect my camera d60 nikon to my pc and be able to just hit the enter button on my computer to take the pictures i seen it done before do i need a software or some kind of special cable to do that. And dose anyone knows a good website were i could buy a good software were i could star a smaal buiss… Taking pictures…

1.Nikon Coolpix L22 12.1MP Digital Camera
* 12.0 megapixels for stunning prints as large as 16 x 20 inches
* 3.6x Zoom-NIKKOR glass lens (37mm to 134mm); bright 3.0-inch LCD
* Easy Auto Mode with Scene Auto Selector;
* capture 640 x 480 movies with sound at 30fps
* 3-way VR Image Stabilization System