If you can get the 300 do it. The A/P and Flt. Dir. in the 200 are dinosaurs like nothing you have ever seen unless you date back to the 60's. Most places will want you to use both (meaning A/P-F/D), very little raw data. You spend half you time figuring out how to use the 200 stuff, it's just not very intuitive. It might have been nice is 1969, but in 2007 it's a real PITA.