[toyobug]

Check this system out! COOL!!
A Spouse's Guide to Building the Perfect Rain Barrel System

Found these too:

Rain Barrel by Aaron
Rain Barrels | Rain Barrel Water Savers | Composters
Rain Barrels, Downspout Diverters and Filters, Rain Barrel Kits

I've heard of these type systems before. Daox, you've really got me interested in this idea. Thanks