I would like to buy Call Of Duty 4 for my mac, my console version is scratched beyond repair. I have a 50 dollar BB gift card but they don't have it listed unless someone else can link it to me? Do you know any sites that are secure and offer a good price for it? I was also thinking about waiting for steam and I would buy the windows version for 29 dollars and then be able to play it on the mac for free-ish. Any ideas?