I was able to pick up a slightly used Grizzly/Polar Bear 0715 for around 5 Benjamins recently. The PO stated he only had issues with the 45* tilting alignment but he squared it before I got my mitts on it. Good power with 220 volts-not sure if this is an issue for you. If you get one of the Grizzly machines, do yourself a favor; get rid of the blade that comes with it and get some better quality cutters for the machine. Makes all the difference in the world for quality cuts.
Keep your eye on the local classified ads such as Craigslist or newspaper ads; you may get lucky like I did.