hey guys thanks for the replies. I did actually build myself a 4x4 table and it turned out pretty nice. But I like this system because the tray fits right on top of the res which gives it a height of 18 inches. thats a lot of extra grow space. Also, I was looking online and found a site where you can buy peices and diy. I would like the reservoir and tray which would be about $160, and I have a pump, ebb/flow fittings, etc. I know any system could be duplicated for a lot cheaper, and a lot funner, but I think the whole idea of having the tray sit right on top of the res was pretty cool.