If you've been able to make money with a '95 Fadal you can make money with an '07 Haas. They are actually similar in a superficial way from a user standpoint.
Haas isn't bad but it isn't great either. You will have some issues with it but they usually have good support. For the money you're talking you can get a brand new one which I would advise strongly with Haas since the support will be better.
What kind of steel? Are you talking mild steel like 1018 or are you getting into stainless? How heavy of a cut are you used to taking on the Fadal? Insert cutter or are you rocking it old school with HSS hoggers and finishers?
It has been my experience with Haas that the same things that wear out on a Fadal are often what wears out on the Haas mills.
I give Haas a B- overall which pisses me off since with a little more effort they could easily make an A.
I hate Fadal with an unbridled passion though.
*ETA*
One of the great things about Haas is the plug and play ability with regards to add ons like a 4th axis as long as you use a Haas accessory. In fact, I'm not sure at all how Haas plays with someone elses add ons.
*More ETA*
Haas Automation
Go to the bottom of the page and look for the "Build a Quote" feature. Play around with that and see what you come up with. Be warned, once you start adding shit, you really start stacking on the $$$ fast.