http://www.gog.com/Star Wars: X-Wing would have to be one of my favourite space fighter games of all time, and my favourite Star Wars games by far.
I played many hours as a youngling. The game was great, varied missions, full 3d space, nice mix of micromanagement (shifting power between shields/ engines, managing repairs, linking lasers)
Plus blasting TIE's with an X-wing is just awesome.
DRM free, so you don't have to go to page 14 of the manual anymore to get the code.
I haven't played Star Wars: TIE fighter, but I'm keen to give it a go.