The connections is where it was a little bit more time consuming. It's all very straight forward. Just run the cable, connect the power and data connectors to the camera and dvr, and mount the cameras.

The instructions for the software for my kit were very dumbed down. lots of pictures and layouts. There are plenty of youtube videos for doing the connectors.

Here is where I bought everything I needed:

Connectors
http://sewelldirect.com/RG59-BNC-Compression-Head-copper-25-Pack.asp

Cable
http://sewelldirect.com/Bulk-RG59Power-Siamese-Cable-1000-ft-Spool.asp

Power supply panel
http://www.monoprice.com/Product?c_id=110&cp_id=11009&cs_id=1100902&p_id=6875&seq=1&format=2

Male power pigtails to plug the camera power in
http://www.monoprice.com/Product?c_id=110&cp_id=11009&cs_id=1100903&p_id=6880&seq=1&format=2

Actual kit- It's not longer live on costco but I found the reviews for it. paid $399 for it.
http://reviews.costco.com/2070/11626498/q-see-q-see-16-channel-security-system-with-1tb-hard-drive-and-8-high-resolution-cameras-reviews/reviews.htm