Any graphics card with a displayport connector. Alternatively, any graphics card with a DVI dual link connector along with a dual-link DVI to displayport adapter (which is rather expensive, IIRC).
As for what other monitors come close? Personally, I'd take the Dell U2711 over the Apple 27 any day. Far more inputs, better looking design (IMO), and the same size, resolution, and panel tech (IPS).