I think Rico is giving you good advice. The 650 is a good press. It's fast, real fast. But the caliber conversions are expensive and it's slow to change calibers in. You can easily load 650 an hour, but this doesn't do you any good if you can't afford reloading components or shoot enough to load that many rounds an hour.
If you have a lot of calibers and want to reload all of them affordably, like I do, you'll want something like the Lee Classic Cast turret press setup Rico mentions. I reload for 30 plus calibers and my Hornady LnL, which is much cheaper than the Dillon 650 to do caliber changes on, got too expensive to justify buying a caliber change. So I bought the Lee Classic Cast turret press for everything I don't load a lot on, but want to reload for accuracy purposes on. For example: .303 Brit, 7.62 X 39, 7.5 Swiss, etc. With the Lee, I can be reloading for these calibers for $35.00 per caliber. If I want to go fancy and add an extra riser and powder measure, that's only $36.00 more per caliber. With a die set installed in a turret, I can put the turret in, add the riser and powder measure to the turret and I'm reloading in 5 minutes, if that.
The total price for the Lee Classic Cast Turret Press, with lg/sm primer safety prime, a Pro Auto Disk measure, one turret and a scale (granted, not a great one, but an accurate one) is only $150.00 at cabella's.
IF you're positive you're going to get need the 650 production, go for it. It's a good press. But if you aren't positive you'll use the full capacity, you're better off with something like the Lee. I wish the Lee had been available when I bought my Hornady. If it had, I'm not sure I would have bought the Hornady. A lot of bang for the buck there.
