If you are strictly using the iMac for Internet and iTunes use, would the 27" iMac be too big? I noticed that when trying out the 27" iMac, maximizing the Safari window doesn't help much because the screen is too large. And the full screen mode in OS X Lion would certainly make the 21.5" seem even bigger. Would a 21.5" iMac suffice for Internet, iPhone syncing, and some light gaming? Because I noticed that the majority of the people who recommend the 27" iMac need the space for developing. Does any casual iMac users have any input?