My honest opinion is to go on Tire Rack and search for wheels that fit your specific car. Rather than searching by price or color, though, I would search by weight. I can go on and on about the benefits of lighter wheels, but plenty of other people have already done that. For a 16" wheel you should be aiming for under 18 pounds, under 20 pounds for 17", and under 24 pounds for an 18" wheel.
For a little bit more than the AR wheels you're looking at, I suggest checking out Sparco Assetto Garas in 17". They're a 19 lb 17x7.5" made by OZ Racing, and they look pretty slick on the mk3 Focus.