I got mine from Eagle Equipment. It a two post with a 12,000 capacity, I paid $3,800.00 shipped. I've had for a year with no problems. Installation was about $300.
I have a Globe 10,000 lb. single post lift in my shop. Biggest problem with most lifts is the ceiling height required. Fortunately my shop has a 16' ceiling so even my crew cab dually super duty has plenty of clearance when raised all the way up. The single post hoist is the most conveneint for everything but transmission work. The trans is right over the center post so you can't pull it while on the hoist.
I bought mine used for $800. from a demolition contractor who was tearing down an automotive repair shop. Have had it twelve years and love it.
Howard