I suggest the NEC FE991SB or the Viewsonic G90f. I will get either the FE991SB-Black or Viewsonic G90fb because I find those to be enjoyed by gamers. I hear that the FE991SB especially works GREAT for games. The G90fb is cheaper and it seems like more people prefer it. It isn't a trinitron but that doesn't matter to me personally. I wouldn't say NEC is basically like Sony's monitors. For one thing, they aren't grossly overpriced🙂 and they use DiamondTron technology not FD Trinitron. They ARE different, such as DiamondTron uses a different amount of electron guns, or uses just one, or something like that. I heard it on here so I know someone could clarify that for me.
I would recommend the G90fb because, unlike the FE991SB, you won't have people saying it is good and another half claiming 'fuzzy text' and is a sure bet to be a good product. I don't know if the FE991SB is under $250, but is about $258 on Newegg and the G90fb I know is under 250.