I'm looking to get a plotter for the home office. Any volume printing goes to the print shop so I'm looking at occasional use. Engineering/Architectural type plotting. Probably 24", though 36" would be nice. For new under 2k there are a few options. Used there are dozens of plotters on eBay and craigslist. Some very expensive plotters going for $0.10 on the $. Some are junk, some are just older. I am running a macbook pro mid 2010 and yosemite. What I'm wondering about in evaluating older plotters is drivers and connections to actually be able use them. I have a usb 2.0 ports, an ethernet port, and wireless and thats about it. I don't know much about printer language and drivers.