After the discussion last year about lifting and racking heavy gear, I bodged together some hardware and came up with the PDP-Lifter. It allows easy movement, lifting and lowering for racking and unracking equipment in 19" racks. Specifically for PDP-11's and the H960, but could be used for pretty much any other old stuff.
I've written a blurb with construction details which you can find at http://web.aanet.com.au/~malikoff/pdp11/PDP-Lifter/ (also posted to my blog on the VCF forum) Steve.