It's hard to tell the scale from the pictures but the planters are decent sized: The blue rectangular ones are 120L rubbermaid containers, the beige one is 190L and the circular brown one is a 25" planter from home depot. The trellises are all 8' tall with exception of the hallertau (the 25" circular planter) as its mounted on my neighbour's balcony making it 12' tall (he's from Czech Republic and down with the cause). I used potting soil in all the planters, I watered pretty much every day (soaking them with a garden hose until water was running out the base) and I used a powdered 20-20-20 fertilizer I got at homedepot every couple weeks.
...and Willamette. That variety is a beast and doesn't seem to care how small the container or trellis is. It had cones starting at waist height all the way to the top. The only downside is its willamette!
A guy I know from the homebrew club has a hydroponic setup and has spectacular results. He got more than twice as much off of first year plants than you should be able to get off of mature bines grown in the ground. I'll get him to post some pictures.