Auto-ordinance is supposed to be o.k. now...just make sure you buy a new one made by KHAR, and dont buy a used one...their not so good.
Buy a Shotgun News and find the best deal on a systima .45...many sell these for way too much.
A horsey (clolt) is not as expensive as they were a year ago. The new models even lack the tacky "1919 A1" stamp and revert back to the older roll marks. (Government, series 80, etc.). I have seen them as low as 500 in gunshows. New but older model 1919A1's are going for 450 round these parts. My answer, try to save up for a decent new forged CNC machiened .45 if at all possible...you wont regret it.