Dude I just bought a system similar to this but only for 10 pots with 30 gallon res. I think the concept and design are good and the price can't be beat. Been building my grow room this week and prepping seeds so I will know, and post, my results.

eBay: 12 Plant Aeroponic Hydroponic Complete Compact System (item 140053671984 end time Dec-15-06 20:13:27 PST)