Hi. I'm thinking about moving to a 27" iMac (i5 and 4850) in order to get a everything-in-one machine : movies, music, work, photo and photo editing (my favorite hobby) and gaming (my other favourite hobby). Well, the 4850 is a good card. But what about in 2 year? It won't be able to play games at native resolution, and we'll have to play at 1920x1080 or 1650x1050. What about that?