I think the winch ideas were my favorite! I'll start looking into
Andrew, since you're interested in this approach I thought I'd put
up a couple web pages on the winch-based bench I built. For lack of a
better name I've called it "The $200 DIY Drawbench"
We've just uploaded this so things might take a day or two to
propagate. The rest of the site is still "under construction" as
they say so it's only those two pages for now.