I'm planning on purchasing a 19" monitor within a week. I want either the Viewsonic G90f, G90fb (black) or PF775. I noticed the G90fb is TCO'95 certified and the G90f is TCO'99 certified. Should this difference make me get the G90f over the G90fb? Also, i'm going to primarily use the monitor for games. Is an apperture grill really required? Thanks a lot.