casts_by_fly said:it is called tethered shooting. Your camera is capable (some aren't). You can use a USB cord (I do). Lastly you need software capable of tethering. I use Aperture on my macbook. I'm sure lightroom does it. I think the Nikon and Canon software does it.
What software do you use? Google it plus tethering and you'll know quickly.
Thanks
Rick
Is it just a standard USB cable for tethering ?
I've used this free software several times and found it very good.
http://www.diyphotobits.com/download-diyphotobitscom-camera-control/