I just bought one of these at the Swap Meet here in February. It came with drive on ramps, casters and drip pans.
http://dmsequipment.com/4-post.htmlI got the XLT so I could walk under it if I wanted without bumping my head.
The casters are removable, takes about 10 minutes to put them on, then you can move it around if you need to.
They showed up, built the lift, showed me the buttons to raise and lower, explained the safety latches, casters and wanted to know if I had any questions. Quick, easy, courteous install.
They had 2 more to install that day, but still wanted to talk about the race cars and bikes.