Wow, look at what I found. Love this cause I'm a lazy bugger.

Wow! I love this one. Automatic watering that probably works very well. I'm really lazy at heart and this is something that will might take over a job for me if I start back up.

http://www.frontgate.com/wcsstore/images/Frontgate/_wcm/video/player.htm?src=IdrisWateringSystem&width=700&height=385

If that link doesn't work try this one

http://www.frontgate.com/x/27421?SourceCode=ZZ081080&cm_mmc=Houzz-_-CPCProductFeed-_-Home+Maintenance+%3e+Enhancements-_-57791#

i see a lot of people use these with success

http://www.blumat.at/automatic-watering-system.php