I built my shop with the intent of installing a hoist (relative to thickness of slab, height, many other considerations) and finally installed it a few years back. It is a 9,000 capacity Bend Pak that I got second hand. It seems every 2nd or 3rd job requires the wheels to be taken off. 2 post makes the most sense for me and the type of stuff I end up doing. There is enough room for a second hoist in there, if need be. If you can get one, do it...you will not regret it, and it will probably end up being the tool you use most often.