Mac-loving fans of the Call of Duty series don't get attention very often, but when they do, it's from publisher Aspyr Games. Aspyr specializes in Mac versions of popular Windows PC titles, and today they delivered a gift to shooter fans on OS X. Actually, they delivered two gifts: Call of Duty: Modern Warfare 2 and Call of Duty: Modern Warfare 3, complete with all the tasty DLC bits included.
The games are now available for download via Steam, or directly from Aspyr's website. If you're not sure whether your Mac machine will run the games at a reasonable quality, you can use Aspyr's GameAgent website to run the handy "Mac Match" tool and check compatibility.
If you're interested in picking up these shooter classics from yesteryear, Modern Warfare 2 -- which I believe to be the superior of the two -- will set you back US$14.99, while Modern Warfare 3 is priced at $29.99. Both prices appear to be limited time discounts, so snag them while they're cheap!