I am thinking about doing a screen setup too for individual plants. I got the idea from North Coast Nursery (I think that is the place that did it, another post I did in the Newbie forum has the link). Anyways you can see the setup below where the PVC frame connects the pot, drain pan, and canopy and incorporates them into one unit. This makes for easy moving, weight checking, growing multiple strains, PVC force field, etc.
I was thinking about going with a small screen about 2.25'x2.25'.
What do you guys think about this system?