I've never shot tethered before and really don't have a clue on how to do it. Can someone help me out here with the items necessary to perform the task and what software do you use for instant viewing?

Craig

I use DSLR Remote Pro from Breeze Systems. Works great. www.breezesys.com

You can use the software that came with your camera, DPP and EOS utility, along with the supplied cable, USB/mini-B. Make sure you set the camera to PC instead of printer in your camera menu.