You can get those off of avsim and others but there is always extras you can buy. Like I wanted Battlefield 2 but my computer wouldn't hold it, now i am looking on www.newegg.com
for more graphics cards. You need atleast one open USB port to have a joystick or (Recommended) CH
Products Yoke, pedals, and throttle quadrant at www.chproducts.com.
Let me know what you think of this advice!