I take off for a week a couple times a year and go away for a lot of weekends. Like a lot of people, I don't have anyone that can watch my tank for me. I've left the tank on auto-pilot for a week before, and nothing bad happened, but it is a little nervewracking. I just got back from a week of diving in Dominica. Before I left, I bought a Linksys Wireless G Internet Camera (model WVC54GCA) for $119 and have it aimed at my tank. This way, I can visually check the tank from anywhere in the world, where I have internet access. I wasn't sure about the reliability of internet access in Dominica, so I gave the website address to my brother and he kept an eye on the tank for me. He kept the video up on his pc at work all day and could check it from his home as well. I told him what to keep an eye on. With the internet camera, I can at least check the water level and know that the automatic topoff is working. I can see that there is water movement in the tank so I know that my powerheads are working and I haven't lost power. I can see there's been no major catastrophe like a crack in the tank or flood. I can see all the fish so I know I haven't had a death of a fish that might cause a major spike in ammonia or something. I also left an instruction book that I typed up with labeled photos of all of my equipment and common problems and solutions (cables are also labeled) , and also left the numbers of my LFS and a person I deal with there a lot, so my brother could call someone in if something looked wrong. Have an autofeeder on there as well, and had someone come in twice during the week to feed a portioned out amount of frozen food. The Internet camera gives me a peace of mind!!! I check my tank frequently from work now too.