I was considering purchasing this... I have a DWC setup at the moment.. I would like to go with a bit more plants.. For now I have a rubbermaid capabe of hoding 4 ladies. Would I be better off with something like this V-18 Hydroponic System Complete Free Coco or Hydroton! - eBay (item 370024847252 end time Feb-20-08 19:09:18 PST) rather than adding more rubbermaids.. More Rubbermaids will mean more water , more work and more time.. I want to be as efficent as possible with out affecting end results.. Any advice is greatly appreciated.