Good question Rich, I paid around $300 for mine but i was lucky. you could expect to pay upto $1000 i think. Depending what condition it is in and if your prepared to wait or not. My advice is to not be in a hurry and the right machine WILL turn up at the right price. if you impulse buy you WILL pay too much.  The other memrs on here know your in the market now and im sure something will come your way. The best part about AP is that were here to help fellow pin heads, and i truly speak from all of the personal experiances ive had.