BUMP to reflect small updates in technology.
While hardware has come a long way since I last made a post here, Rise of Flight's game engine has not evolved much, IMO. The Channel Map is still the number one hard hitter ( as far as I know ), and will test your hardware in ways the other maps will not. Be adivised, but also keep in mind that today's mid-level tech is much better than stuff from 5-7 years ago. For example, a cheap quad core and a recent $125.00 Vid card, plus 4gb of DDR3 should do the trick on Win 7 and above.
Best wishes and Happy holidays.