This well-regarded (8.7 on GameSpot) real time strategy game for the PC was released in 2006, and heralded as one of the few Star Wars titles which has lived up to the promise of the franchise.
It has a dual-layered design which requires you to think on both a strategic and a tactical level, large scale battles, two campaigns (Empire and Rebel) and the usual array of Star Wars characters in the authentic universe.
For US$5, I think it's a bargain.
I hope other OzBargain followers find this tipoff helpful.
Pretty good game.