Hiya All,
I have the game, and it runs OK on my system (homebrew ASUS A7N8X Dlx, AMD 2400+, ti-4200 128 MB 8X AGP and 512 MB), but I wasn't really impressed with it. But I probably haven't messed with it enough.
I am probably jaded by the fact that I bought Battlefield 1942 at the same time, and overall it is much more fun, IMO. Not only planes, but you can drive around tanks, jeeps, subs, crusiers and even aircraft carriers (and of course, run around like an idiot).
Best,
Rich