I highly recommend this shop crane:

http://igor.chudov.com/tmp/OTC-Shop-Crane/

Amazon: http://www.amazon.com/OTC-1814-Capac.../dp/B00291AOU4

It is so much better than my old trusty Harbor Freight crane, it is
amazing.

1. Can lift 6,000 lbs to a great height, over 11 feet.
2. Electric hydraulic, two speed pump
3. The rear wheel swivels, as opposed to the front wheels, meaning
easier and safer to maneuver.
4. What this crane needs, for sure, is a large, and very flat, floor.

I have been moving stuff around the building, with it, it moves 1,000
lbs things like nothing.

i